Bug Bite Forecast: Wyoming โ Week of June 29, 2026
Week of June 29, 2026 · ๐ด High Bug Risk · Cheyenne: 74.0ยฐF, 32% humidity

Summer outdoor landscape in Wyoming โ bug bite and mosquito activity forecast โ Just Bite Me natural bug bite relief · Photo: TaylorLayne / Pixabay
Welcome to our weekly bug bite forecast for the week of June 29, 2026! This week, Wyoming is truly coming alive, and unfortunately, so are the bugs, leading us to issue a High risk advisory across the entire state. With consistently warm temperatures settling in and lingering moisture from recent weather patterns, expect to encounter plenty of biting insects during all your fantastic outdoor adventures.
Up in Northwest Wyoming, including the stunning Yellowstone and Grand Teton areas, warm days are quickly melting the last of the high-country snow, creating perfect breeding grounds for a surge in mosquito activity, especially around damp areas and slow-moving streams. You’ll also want to keep an eye out for black flies near rivers and creeks.
Over in Northeast Wyoming, around Devils Tower and the Black Hills, the weather is expected to be a bit drier, but recent scattered showers mean mosquitoes are still very present, particularly at dawn and dusk. Ticks are also quite active in grassy and wooded areas, so remember to do those thorough checks after spending time outdoors.
Moving to Southwest Wyoming, along the Green River and near Flaming Gorge, expect warm, sunny days, though the breezes can sometimes offer a little relief from the heat. The proximity to these significant water bodies means mosquitoes will be abundant, and biting midges might also make an appearance, especially as evenings begin to cool.
Finally, down in Southeast Wyoming, including Cheyenne and the Laramie area, we’re looking at warm conditions with a continued chance of pop-up thunderstorms, which will keep mosquito populations thriving in any standing water. As you venture out to enjoy all that Wyoming has to offer, remember, if you do get bit, Just Bite Me natural bug bite relief is available at retailers across Wyoming to help soothe those pesky itches.
๐บ๏ธ Wyoming Bug Forecast by Region
Expand your region below, then open any city or town for its local forecast.
โถNorthwest NW 18 communities
Northwest Wyoming is currently around 61.1ยฐF with 44% humidity and few clouds. Bug activity near shaded yards, trails, and water tends to peak around dawn and dusk under these conditions.
๐ก ModerateRiverton
Mosquito activity is expected to be moderate near the Wind River and any irrigated areas. Enjoy fishing but prepare for some evening bites
๐ก ModerateJackson
Hikers and anglers should anticipate moderate mosquito and deer fly presence, especially along the Snake River and shaded trails. Ticks may also be active in tall grasses
๐ก ModerateCody
Mosquitoes will be present near the Shoshone River and Buffalo Bill Reservoir, particularly during dawn and dusk. General biting flies could also be a nuisance in rural areas
๐ข LowPowell
With moderate humidity, expect low to moderate mosquito activity primarily confined to areas around irrigation canals and standing water. Open spaces will be largely clear
๐ก ModerateWorland
Mosquitoes will be active near the Bighorn River and its associated wetlands, especially as evening approaches. Residents in agricultural zones may also encounter biting flies
๐ก ModerateThermopolis
Mosquitoes will be noticeable near the Bighorn River, particularly in shaded, calmer areas. The hot springs district itself should see minimal insect annoyance
๐ก ModerateLovell
Moderate mosquito activity is forecast near irrigated farmlands and the edges of the Bighorn Canyon. Ticks could be present in brushy areas
๐ก ModerateGreybull
Expect moderate mosquito presence along the Bighorn River and its tributaries. Outdoor activities near water in the evening hours may require repellent
๐ด HighMoose Wilson Road
Abundant mosquitoes and deer flies are expected along this scenic route due to numerous wetlands, ponds, and shaded forest areas. Prepare for significant insect activity
๐ก ModerateFort Washakie
Mosquitoes will be active near the Wind River and its various channels throughout the reservation. Biting flies may also be a minor concern in open, grassy areas
๐ก ModerateSouth Park
Mosquito activity is moderate, particularly near the Snake River corridor and any well-watered residential lawns. Evening outdoor enjoyment may be impacted
๐ก ModerateArapahoe
Expect moderate mosquito activity near the Wind River and around agricultural fields with standing water. Biting flies could also be present
๐ก ModerateEthete
Mosquitoes will be moderately active near local streams and irrigation ditches on the reservation. Enjoy the outdoors but bring repellent for evening hours
๐ก ModerateStar Valley Ranch
Mosquitoes will be present near the Salt River and around the golf course, particularly at dusk. Ticks might be found in taller grasses along the foothills
๐ก ModerateWilson
Moderate mosquito and deer fly activity is expected near the Snake River and within the surrounding wooded areas. Hikers and those near water should be prepared
๐ก ModerateBasin
Mosquito activity will be concentrated along the Bighorn River and any local irrigation. Evening outdoor activities may encounter some biting insects
๐ก ModerateHoback
Elevated mosquito and horse fly activity is expected along the Hoback River and within the forested canyon areas. Hikers and campers should use repellent
๐ก ModerateRafter J Ranch
Expect moderate mosquito activity near any ponds or damp areas on the ranch. Biting flies may also be present around livestock and open fields
โถNortheast NE 10 communities
Northeast Wyoming is currently around 67.1ยฐF with 29% humidity and broken clouds. Bug activity near shaded yards, trails, and water tends to peak around dawn and dusk under these conditions.
๐ก ModerateGillette
Biting flies could be a nuisance during evening strolls in city parks, especially near any irrigated green spaces. Mosquito activity remains low due to dry air
๐ก ModerateSheridan
Hikers in the Bighorn foothills should check for ticks, as the broken clouds offer ideal conditions for them. Mosquitoes along the Tongue River may be present, despite the dry air
๐ก ModerateBuffalo
A moderate tick risk exists for those venturing into wooded areas near the Bighorns. Gnats might be noticeable along Clear Creek in the early evening
๐ก ModerateNewcastle
Tick activity is moderate in the forested areas around Newcastle, particularly for those on trails. Deer flies could also be present, especially where game trails intersect
๐ข LowWright
With the dry conditions, mosquito numbers remain low. However, persistent stable flies might bother those working outdoors or enjoying evening walks in open areas
๐ก ModerateAntelope Valley-Crestview
Mosquitoes may emerge in localized pockets around irrigated lawns and gardens during the evening hours. Gnats could also be a minor nuisance on patios
๐ข LowSleepy Hollow
A low risk of mosquito bites is expected, though a few persistent biters might be found near damp spots in yards. Small biting flies are generally inactive
๐ด HighSundance
A high tick risk is present for anyone hiking or camping in the Bear Lodge Mountains or Black Hills National Forest. Biting flies could also be active near Keyhole State Park, especially in shaded areas
๐ก ModerateUpton
Mosquito activity is moderate along the Belle Fourche River, particularly during dawn and dusk. Biting flies may also be present in open, grassy areas
๐ก ModerateMoorcroft
Mosquitoes will be moderately active near the Belle Fourche River and Keyhole State Park as evening approaches. Biting midges might also emerge in sheltered areas
โถSouthwest SW 11 communities
Southwest Wyoming is currently around 55.2ยฐF with 34% humidity and broken clouds. Bug activity near shaded yards, trails, and water tends to peak around dawn and dusk under these conditions.
๐ก ModerateRock Springs
Expect moderate gnat activity around sagebrush areas and any sheltered spots, especially as intermittent sunshine warms the ground. Hikers on local trails might encounter a few persistent midges
๐ด HighGreen River
The Green River’s banks, warmed by broken clouds, could see an early emergence of biting midges and black flies. Anglers and those enjoying riverside strolls should be prepared for noticeable activity, particularly near dense vegetation
๐ข LowEvanston
Cool temperatures and dry air keep most biting insects at bay in Evanston today. Only isolated gnats might be a minor nuisance near sheltered areas in parks or along the Bear River
๐ก ModerateLander
Broken clouds and mild temperatures could encourage some early season biting flies in sheltered, grassy areas near the Popo Agie River. Hikers exploring the foothills should check for ticks after their outings
๐ข LowKemmerer
With low humidity and cool temperatures, bug activity around Kemmerer remains low. Only a scattered gnat or two might be noticed near damp ground or sheltered areas, posing minimal bother
๐ก ModerateNorth Rock Springs
Expect moderate gnat activity, particularly near residential landscaping and any localized damp spots. Intermittent sunshine may temporarily increase their presence during midday outdoor chores
๐ก ModerateLyman
Despite the lower humidity, areas along the Blacks Fork River and near irrigated fields could see moderate activity from early biting midges. Fishermen and those working outdoors should be prepared for occasional encounters
๐ก ModerateAfton
The mild temperatures and broken clouds may rouse early season black flies and a few biting midges near the Salt River. Anglers and hikers in the lush valley should be aware, especially where vegetation is denser
๐ข LowPinedale
Pinedale’s cool air and high elevation keep most biting insects largely inactive today. Only a stray gnat might be encountered near sheltered areas by Fremont Lake, posing little nuisance
๐ก ModerateMountain View
Broken clouds and mild temperatures could encourage moderate activity from biting midges and some early mosquitoes near agricultural irrigation and the Blacks Fork River. Those outdoors, particularly near water, should be mindful
๐ข LowMarbleton
Bug activity around Marbleton remains low due to the cool, dry conditions. Expect only occasional gnats in sheltered, warmer microclimates, presenting minimal disruption to outdoor plans
โถSoutheast SE 3 communities
Southeast Wyoming is currently around 74.0ยฐF with 32% humidity and clear sky. Bug activity near shaded yards, trails, and water tends to peak around dawn and dusk under these conditions.
๐ก ModerateCheyenne
Enjoy the clear skies, but mosquitoes may be active near city parks and irrigated areas during evening strolls. Biting gnats could also be present around shrubbery
๐ก ModerateCasper
With the warm temperatures, expect moderate mosquito activity along the North Platte River and near foothills. Daytime activities might encounter a few biting flies in open, grassy areas
๐ก ModerateLaramie
Despite the low humidity, mosquitoes may emerge near the Laramie River and campus wetlands as temperatures are pleasant. Consider repellent for evening outdoor gatherings
๐ 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.
๐ 13 Just Bite Me locations in Wyoming ยท View full retailer list
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 forecasts from Google Gemini. Store locations are sourced from Just Bite Me’s retailer database. Forecasts are refreshed weekly. For urgent outdoor health concerns, consult local public health resources.