Wyoming Bug Bites — Weekly Forecast for the Week of October 12, 2026
Week of October 12, 2026 · 🔶 Mixed Bug Risk · Cheyenne: 55.1°F, 50% humidity

Fall outdoor landscape in Wyoming — bug bite and mosquito activity forecast — Just Bite Me temporary bug bite relief · Photo: 12019 / Pixabay
Welcome to your weekly Wyoming bug bites forecast for October 12, 2026! This week brings a truly mixed bag across the Equality State, with some areas still experiencing outdoor biting insects while others have happily entered a dormant, colder phase. Notably, Wyoming has seen significantly drier conditions this year, with only 20mm of rain compared to last year’s 41mm, a trend that has kept overall breeding sites and insect pressure lower than normal, influencing these mixed conditions. The accordion below still lists every city and town, but dormant communities will receive seasonal local notes instead of a bite forecast, as we re-check temperatures weekly.
In Northwest Wyoming, conditions are currently in a "shoulder" phase, with temperatures around 53.6°F during the day and dropping to about 51.3°F overnight. This means that while insect activity is winding down, you might still encounter some lingering biters, especially during the warmer parts of the day.
Northeast Wyoming, however, has firmly entered its dormant period, with chilly daytime temperatures around 35.1°F and overnight lows near 34.7°F. Here, you can enjoy the crisp air without much concern for biting insects, as they are largely inactive due to the cold.
Similarly, Southwest Wyoming is also in a dormant state, with temperatures hovering around 45.8°F during the day and 45.5°F overnight. The colder weather in this region means most outdoor biting insects have become inactive, offering a reprieve for those spending time outdoors.
Finally, Southeast Wyoming is experiencing a "shoulder" period, much like the Northwest, with comfortable daytime temperatures around 54.9°F and overnight lows near 53.8°F. While insect activity is decreasing, a few determined biters might still be out and about, so it’s always wise to be prepared. Remember, for any unexpected bites, Just Bite Me temporary bug bite relief is available at retailers across Wyoming.
🗺️ Wyoming Bug Forecast by Region
Wyoming bug bites are mixed this week: some parts still have activity; colder parts are dormant. Expand your region below — every city and town stays listed. Dormant communities get seasonal local notes instead of a bite forecast. We re-check temperatures every week.
▶Northwest NW 18 communities
Northwest Wyoming is currently around 53.6°F with 80% humidity and light rain. Bug activity is winding down: last mosquitoes near water at dusk, with ticks still possible on trails. With only 20mm of rain over the past month, compared with 41mm during the same stretch last year, the ground has dried out more than usual, which has held bug numbers below a typical week.
🟢 LowRiverton
Expect some lingering mosquito activity near the Wind River, particularly around dusk, as they seek out the last warm pockets. Drier conditions over the past month, with significantly less rainfall than last year, have slightly curbed overall insect populations. Keep an eye out for ticks if venturing into tall grass
🟢 LowJackson
Mosquitoes could still be a nuisance near the Snake River and its tributaries, especially as evening approaches. The notably drier weather observed over the last month, a stark contrast to last year’s precipitation, has somewhat reduced the typical late-season bug pressure. Trail users should check for ticks
🟢 LowCody
Dusk will bring out some mosquitoes, particularly along the Shoshone River, but overall activity is decreasing. Monthly rainfall totals, nearly half of last year’s, mean less standing water for bug breeding. Be mindful of ticks on hiking paths
🟢 LowPowell
While overall insect numbers are winding down, a few persistent mosquitoes may emerge at dusk near irrigation ditches. The recent drier spell, with a substantial drop in rain compared to the previous year, has contributed to fewer insect hatches. Tick checks are still advisable after outdoor activities
🟢 LowWorland
Anticipate some mosquitoes near the Big Horn River during the evening hours. With the past month recording notably less rain than the year prior, the usual late-season surge of insects has been somewhat mitigated. Ticks remain a concern on trails
🟢 LowThermopolis
Lingering mosquitoes will be most active around the Bighorn River at twilight. The region’s significantly drier conditions over the last 30 days, compared to the same period a year ago, have likely suppressed some insect development. Remember to check for ticks after walks
🟢 LowLovell
Only scattered mosquitoes are likely to be found near water sources as dusk settles. The notable reduction in rainfall over the last month, nearly half of what was seen last year, has led to a less intense bug season. Be aware of ticks if you leave paved areas
🟢 LowGreybull
Expect some limited mosquito activity near the Greybull River at dusk. The recent dry trend, with rainfall totals significantly below last year’s, has reduced overall insect breeding opportunities. Check for ticks after outdoor excursions
🟢 LowMoose Wilson Road
Mosquitoes will likely be present near wetlands and the Snake River as evening sets in. The area’s notably drier conditions during the past month, a significant departure from last year’s rainfall, have somewhat reduced late-season insect populations. Ticks are still a possibility on trail edges
🟢 LowFort Washakie
A few mosquitoes may still be active near the Wind River and its associated waterways during the evening. The pronounced deficit in rainfall over the past month, compared to the previous year, has likely limited the extent of insect outbreaks. Don’t forget to check for ticks after walking in grassy areas
🟢 LowSouth Park
Dusk could bring out some mosquitoes near wetter areas and the Snake River. The notably drier conditions experienced over the last month, with significantly less precipitation than last year, have likely kept insect numbers from peaking. Keep an eye out for ticks on any trails
🟢 LowArapahoe
Expect some mosquitoes to be present near the Wind River as evening approaches. The past month’s notably drier weather, contrasting sharply with last year’s rainfall, has likely suppressed overall insect activity. Remember to perform tick checks after venturing into vegetation
🟢 LowEthete
Lingering mosquitoes may be active near the Little Wind River and its surrounding areas during twilight. The region’s notably drier conditions over the last 30 days, a significant drop from last year’s precipitation, have likely reduced late-season insect pressure. Ticks are still a concern in taller grasses
🟢 LowStar Valley Ranch
Some mosquitoes may emerge near standing water and the Salt River as dusk approaches. The recent period of significantly less rain over the last month, compared to the previous year, has somewhat curtailed the typical late-season bug emergence. Always check for ticks after outdoor activities
🟢 LowWilson
Mosquitoes could still be a nuisance near the Snake River and its wetlands, especially around dusk. The notably drier weather in the past month, a stark contrast to last year’s rainfall, has somewhat limited the overall insect population. Trail users should check for ticks
🟢 LowBasin
Only a few persistent mosquitoes might be found near the Greybull River as evening settles. The notable reduction in rainfall over the last month, nearly half of what was recorded last year, has led to a quieter bug season. Be aware of ticks if you leave paved areas
🟢 LowHoback
Expect some mosquitoes near the Hoback River and its adjacent areas during the evening hours. The area’s notably drier conditions over the past month, a significant departure from last year’s rainfall, have somewhat reduced late-season insect populations. Ticks are still a possibility on trail edges
🟢 LowRafter J Ranch
Dusk will likely bring out some mosquitoes near the wetlands and the Snake River. The notably drier conditions experienced over the last month, with significantly less precipitation than last year, have likely kept insect numbers from being higher. Keep an eye out for ticks on any trails
▶Northeast NE 10 communities
Northeast Wyoming is currently around 35.1°F with 94% humidity and light rain. Outdoor biting insects are inactive under these temperatures. Local notes stay in the accordion as seasonal information until nights warm up. 20mm of rain over the past month, compared with 41mm during the same stretch last year — the drier stretch has limited standing water and kept breeding sites in check.
❄️ DormantGillette
Outdoor biting insects are dormant in Gillette this week. Prepare your yard before the freeze by checking for standing water in tire piles near the Campbell County Airport, clearing gutters along the Bell Nob Golf Club, and inspecting woodpiles in the Boxelder neighborhood to reduce tick habitats. The past month’s significantly reduced rainfall, just under half of last year’s amount, means fewer damp spots around the city for potential insect breeding
❄️ DormantSheridan
Biting insects are dormant in Sheridan due to cold weather. As temperatures drop, it’s time to ensure your yard is ready for winter; clear any standing water from neglected bird baths or decorative ponds near Kendrick Park and clean out gutters along Big Goose Creek to prevent ice dams. With monthly precipitation nearly halved compared to last year, the ground around the Sheridan WYO Rodeo grounds feels much drier than usual
❄️ DormantBuffalo
Cold temperatures mean outdoor biting insects are dormant in Buffalo. Residents should be on the lookout for indoor leftover pests like cluster flies or overwintering mosquitoes in basements and garages, especially in homes near the Bighorn Mountains. The city has experienced considerably less rainfall over the last 30 days than the previous year, which has contributed to drier local conditions
❄️ DormantNewcastle
Biting insects are dormant this week in Newcastle. As the season progresses, ensure outdoor areas are prepped for colder weather; this includes emptying any containers that could hold standing water near the Mondell neighborhood and tidying woodpiles along the Cheyenne River for tick control. Notably, the region’s rainfall over the last month has been significantly lower than the same period a year ago, impacting local moisture levels
❄️ DormantWright
Outdoor biting insects are dormant in Wright this week. Locals might consider traveling south where insects remain active, as many popular destinations in warmer states still see significant bug activity. The recent 30-day rainfall total, being less than half of what it was last year, has resulted in unusually dry conditions across the area
❄️ DormantAntelope Valley-Crestview
Biting insects are dormant in Antelope Valley-Crestview due to the prevailing cold. This is an ideal time to check for indoor overwintering pests such as mosquitoes in basements or cluster flies around window sills in homes near the Antelope Creek area. Compared to last year, the amount of rain received over the past month has been notably lower, influencing the current environmental dryness
❄️ DormantSleepy Hollow
Biting insects are dormant this week in Sleepy Hollow. As temperatures continue to fall, homeowners should prepare for the first frost or freeze watch by covering sensitive plants and draining outdoor faucets. A significant reduction in monthly rainfall compared to the previous year means the ground around the community is unusually parched
❄️ DormantSundance
Outdoor biting insects are dormant in Sundance this week. It’s crucial to prepare your yard before a hard freeze by clearing gutters on homes near Sundance Mountain and removing any standing water from old tires or buckets around the Crook County Fairgrounds. The past month has seen remarkably less rain than last year, contributing to drier than average soil conditions
❄️ DormantUpton
Cold weather means outdoor biting insects are dormant in Upton. Residents should be vigilant for indoor pests like cluster flies and overwintering mosquitoes seeking refuge in basements or sheds, especially in properties closer to the Belle Fourche River. The recent 30-day period has brought notably less rain than the previous year, leaving the landscape drier than anticipated
❄️ DormantMoorcroft
Biting insects are dormant in Moorcroft due to current cold conditions. Now is a good time to clear gutters and remove any standing water from tire piles or woodpiles near the Moorcroft Recreation District, which can harbor ticks and future mosquito breeding sites. Over the last month, rainfall has been substantially less than the year prior, leading to drier local terrain
▶Southwest SW 11 communities
Southwest Wyoming is currently around 45.8°F with 93% humidity and overcast clouds. This quadrant is below the flight threshold for mosquitoes. Town entries are unique seasonal notes, not bite forecasts. After 20mm of rain over the past month, compared with 41mm during the same stretch last year, many of the usual breeding spots have dried up, easing pressure compared to a normal season.
❄️ DormantRock Springs
Residents near Flaming Gorge need not worry about bites this week, as cold weather keeps insects at bay. The significantly drier past month, with only half last year’s rainfall, means fewer lingering puddles that might otherwise host future mosquito larvae
❄️ DormantGreen River
Outdoor biting insects are inactive around Expedition Island and the Green River Greenbelt due to the chilly conditions. This past month’s rainfall, nearly 20mm less than a year ago, has contributed to a much drier landscape this fall
❄️ DormantEvanston
With temperatures dropping, enjoy the Bear River State Park trails without concern for biting insects this week. The area has seen a notable decrease in precipitation over the last month, impacting general moisture levels around town
❄️ DormantLander
Near Sinks Canyon State Park, cold weather has rendered all outdoor biting insects dormant. The region’s rainfall over the last 30 days, falling well below previous year’s levels, has created unusually dry conditions
❄️ DormantKemmerer
Biting insects are currently dormant around Fossil Butte National Monument and Kemmerer City Park due to the cold. The last month has been remarkably dry, with precipitation totals significantly lower compared to the same period last year
❄️ DormantNorth Rock Springs
Enjoy the lack of biting insects this week around North Rock Springs’ residential areas and open spaces, thanks to the cold. This month’s rainfall deficit, nearly 50% less than last year, points to a much drier autumn here
❄️ DormantLyman
Cold temperatures mean no biting insect activity in Lyman, whether near the schools or surrounding fields. The community has experienced a marked reduction in rainfall over the past 30 days, making conditions much drier than typical
❄️ DormantAfton
The chill has put all outdoor biting insects in Afton, including those near the Swift Creek trails, into dormancy. With almost 20mm less rain this past month than last year, the local environment is notably parched
❄️ DormantPinedale
Visitors to Fremont Lake and the surrounding wilderness will find outdoor biting insects dormant due to cold weather. Local precipitation for the last 30 days has been considerably lower, leading to drier than usual conditions across the area
❄️ DormantMountain View
Outdoor biting insects are dormant this week in Mountain View, making local parks and open areas pleasant. The past month has seen a significant decrease in rainfall, contributing to a drier environment than a year ago
❄️ DormantMarbleton
Enjoy the Big Piney-Marbleton area without insect bites, as cold weather keeps them dormant. This month’s rainfall has been notably sparse, creating a much drier landscape compared to this time last year
▶Southeast SE 18 communities
Southeast Wyoming is currently around 54.9°F with 50% humidity and clear sky. Cool days have cut numbers, but hiking edges and standing water can still produce a few bites. The drier-than-normal run behind us (20mm of rain over the past month, compared with 41mm during the same stretch last year) has meant fewer soggy spots for mosquitoes to multiply.
🟢 LowCheyenne
Mosquito activity is minimal, primarily confined to sheltered, damp areas near standing water at dusk. The notably drier conditions over the past month have significantly reduced typical late-season breeding grounds for biting insects. Keep an eye out for ticks if venturing into tall grass on trails
🟢 LowCasper
Expect some lingering mosquito populations around the North Platte River, especially as evening approaches. The recent decrease in monthly rainfall has contributed to fewer widespread damp areas, but isolated pockets persist. Trail users should still perform tick checks after outdoor activities
🟢 LowLaramie
Biting insects are mostly dormant, with only isolated mosquitoes making an appearance during twilight hours near the Laramie River. This autumn, the region has experienced notably less precipitation, which has helped suppress late-season insect surges. Ticks remain a very minor concern in grassy areas
🟢 LowRawlins
Mosquitoes are largely inactive, with only a very sparse presence noted near any remaining moist depressions at dusk. The area’s notably drier last 30 days means insect populations are considerably lower than previous years. Trailside tick encounters are improbable but not impossible
🟢 LowTorrington
Dusk may bring out a few resilient mosquitoes near irrigation ditches and the North Platte River. We’ve seen considerably less rain this month, which has generally kept bug numbers down. Hikers should still be mindful of ticks in brushy areas
🟢 LowDouglas
Look for minimal mosquito activity, mainly concentrated around the North Platte River during the evening cool-down. The past month’s significantly reduced rainfall has led to fewer active insect habitats. A quick tick check is advisable after walking through taller vegetation
🟢 LowRanchettes
Lingering mosquitoes are scarce, potentially appearing in sheltered, damp spots as evening settles. Comparatively, the last 30 days have been much drier, lessening the overall insect burden. Ticks are a low risk, but good to check if exploring off-path
🟢 LowSouth Greeley
Biting insect encounters are rare, with only a few stray mosquitoes active near any remaining moisture at dusk. Over the past month, the area received notably less rain, contributing to a quieter insect season. Ticks on trails are a minimal concern
🟢 LowMills
Isolated pockets of mosquitoes might be present near the North Platte River as temperatures drop in the evening. The notably drier trend this past month has, in part, limited the late-season expansion of insect breeding sites. Remember to check for ticks after any time spent in natural areas
🟢 LowWheatland
Expect very limited mosquito activity, primarily at dusk near the Laramie River and irrigation channels. The recent period of notably less rainfall has helped to keep biting insect numbers unusually low. Ticks are an extremely low risk, but always good to be aware
🟢 LowFox Farm-College
Mosquitoes are mostly absent, with only an occasional bite possible around dusk near lingering dampness. The significant reduction in rainfall over the last month has severely curtailed late-season insect development. Tick activity is minimal on local trails
🟢 LowEvansville
Some mosquitoes may still be active near the North Platte River and other water features during the evening. This autumn’s notably drier conditions have generally suppressed insect populations. Perform a tick check after walks through grassy or wooded areas
🟢 LowBar Nunn
Biting insects are nearly gone, with only a very rare mosquito encounter possible during the twilight hours. The region’s significantly drier recent weather has further diminished late-season insect populations. Ticks are highly unlikely but a quick check won’t hurt
🟢 LowGlenrock
Anticipate some mosquito presence near the North Platte River as the evening cools. The notably drier monthly precipitation has helped mitigate a larger insect problem. A careful tick check is a good practice after outdoor adventures
🟢 LowSaratoga
Mosquito activity is very light, mainly confined to areas immediately surrounding the North Platte River at dusk. The notably drier conditions over the past 30 days have led to fewer available breeding habitats. Ticks are a low risk in the riparian areas
🟢 LowLusk
Biting insects are winding down considerably, with only a few mosquitoes possibly active in sheltered, damp locations during the evening. The notably drier pattern observed this past month has reduced the typical late-season insect persistence. Trail users face a very low tick risk
🟢 LowGuernsey
Lingering mosquitoes may be encountered near the North Platte River as evening sets in. The overall trend of less rain this month has somewhat limited their numbers. Hikers should still check for ticks after exploring the state park trails
🟢 LowPine Bluffs
Mosquitoes are nearly gone, with only an isolated one potentially found near any persistent moisture at dusk. The notably drier climate experienced recently has played a role in subduing late-season insect activity. Ticks are a minimal concern in local grassy areas
🛒 Where to Buy Just Bite Me Bug Bite Relief in Wyoming
Just Bite Me is available at 13 locations across Wyoming. Use the map below to find the nearest retailer.
Drag, zoom, and click a pin to see the store name and directions.
📍 13 Just Bite Me locations in Wyoming · View full retailer list
Wyoming Bug Bites: What to Know This Week
Check Wyoming bug bites against this week’s temperature, humidity, and rainfall before you pack. The city list above is the neighbourhood-level view; keep bite relief handy if you are heading outside.
About This Forecast
This weekly bug bite forecast for Wyoming is generated using current weather data from OpenWeather, geographic city data from GeoNames, and AI-written notes from Google Gemini. Quadrants are classified independently from this week’s temperatures, so part of a province or state can be dormant while another part stays in season. Store locations are sourced from Just Bite Me’s retailer database. Updates are refreshed weekly.
