Bug Bite Forecast: Washington — Week of June 29, 2026

Mosquito activity is moderate near urban parks and greenbelts like Discovery Park, especially with the high humidity. Enjoy evening walks but consider light repellent near dense foliage

With overcast skies and humidity, expect moderate gnat and midge activity, particularly around Lake Washington waterfronts and forested paths. Gardeners might notice increased insect presence

The Green River Valley’s wetlands could see moderate mosquito populations emerging. Be mindful during outdoor activities near stagnant water, especially if hiking or fishing

Mosquitoes may be active near the Skykomish River and damp garden areas; consider light long sleeves if outdoors

Mosquitoes are likely present near the Sammamish River and local greenbelts, favoring shaded, humid spots

Cooler temperatures are keeping most biting insects subdued, but a few persistent mosquitoes might emerge in sheltered damp spots

Mosquitoes are a possibility near Lake Washington and in lush, damp residential areas

Mosquitoes will be very active along the Spokane River and in shaded city parks due to the high humidity and overcast skies. Consider repellent if you’re enjoying an evening stroll or picnicking outdoors

Expect noticeable mosquito and biting fly activity, particularly near residential green spaces and slower-moving water. Yard work and evening walks may attract unwanted attention from insects

Gnats and some mosquitoes will be present, especially near the Columbia River and in irrigated orchard areas. Outdoor dining

Damp urban parks and sheltered areas may experience moderate mosquito activity, especially near standing water. Watch for slugs and snails in gardens after dusk

The high humidity and overcast skies create damp conditions ideal for slugs in gardens. Mosquitoes may be present near the Columbia River and local wetlands, though their activity will be tempered by the cool air

With high humidity and proximity to numerous lakes, mosquito activity will be elevated, especially near shorelines and stagnant water. Ticks could also be a concern in overgrown grassy areas around the lakes

Overcast skies and high humidity mean slugs will be abundant in gardens. While cooler temperatures limit mosquito swarms, expect some activity near Capitol Lake and the Deschutes River

Damp conditions make for plentiful slugs in residential gardens and damp foliage. Mosquitoes may be present in sheltered, humid spots, particularly after any recent rain

The combination of high humidity and nearby lakes will lead to high mosquito activity, especially during dawn and dusk. Be aware of ticks in taller grasses around park trails

Expect moderate mosquito presence in damp, shady areas and around the Puyallup River, despite cooler temperatures. Slugs will be very active in gardens and moist ground cover

High humidity and proximity to the Columbia River increase the likelihood of mosquito encounters, particularly at dawn and dusk. Ticks might be found in forested edges and tall grass

Damp conditions favor slugs and snails in gardens and moist landscaping. Mosquitoes will be moderately active in sheltered, humid spots, especially near standing water

While high humidity will encourage slug activity in damp areas, the cooler temperatures and generally well-maintained urban environment suggest low mosquito numbers. Keep an eye out for spiders seeking indoor warmth

The mix of high humidity, overcast skies, and numerous lakes and wetlands makes for high mosquito activity. Ticks are also a significant concern in wooded and overgrown areas

Agricultural and forested areas will see moderate tick activity due to damp ground cover. Mosquitoes may also be present in lower numbers near standing water sources

High humidity and proximity to the Columbia River and Lacamas Lake mean moderate mosquito activity, especially near the water’s edge. Slugs will be abundant in gardens

With its many natural areas and proximity to lakes, Bonney Lake will experience high mosquito activity due to the humidity. Ticks are also a concern in wooded and grassy trails

Expect moderate mosquito activity near the creek and other damp, shaded areas, despite cooler temperatures. Slugs will be highly active in gardens and on sidewalks

Cooler temperatures will keep most flying insects at bay, but high humidity will make slugs very active in gardens. Mosquitoes are unlikely to be a major nuisance

Damp conditions mean slugs will be plentiful in residential areas. Mosquitoes may emerge in sheltered, humid spots, particularly near any standing water

Overcast skies and high humidity will encourage slugs to be very active. Mosquitoes may be present in moderate numbers near ponds and wooded areas, especially at dusk

Near the Deschutes River and Capitol Lake, expect moderate mosquito activity in damp, sheltered areas. Slugs will be abundant in gardens and moist ground

Damp conditions in this suburban-rural transition zone will lead to active slugs. Mosquitoes may be present in moderate numbers near any standing water or shaded, humid spots

While high humidity makes for active slugs, the cooler temperatures and suburban setting will likely result in low mosquito activity. Spiders may be more noticeable indoors

Damp, overcast conditions will make slugs very active in gardens. Mosquitoes will be moderately present near the Skookumchuck River and other moist areas, especially at dusk

The persistently damp, coastal conditions, high humidity, and overcast skies create a high risk for mosquito activity, particularly near the Chehalis River and surrounding wetlands. Ticks are also a concern in brushy areas

Expect moderate mosquito activity near the Columbia River and Washougal River due to high humidity. Slugs will be very active in damp gardens and shaded areas

Damp, overcast conditions will lead to active slugs in gardens and fields. Mosquitoes may be moderately present in sheltered, humid spots, especially near any standing water

High humidity and proximity to the Cowlitz River mean moderate mosquito activity, particularly in sheltered, damp areas. Slugs will be abundant on sidewalks and in gardens

The damp, overcast conditions will make slugs and snails very active. Mosquitoes may be present in moderate numbers near the White River and other moist, wooded areas

Cooler temperatures will keep most flying insects at bay. High humidity will, however, lead to very active slugs and snails in gardens and damp ground cover

Extensive wooded training areas and damp conditions create a high risk for tick encounters. Mosquitoes will also be active in low-lying, humid areas, especially near ponds and wetlands

Damp conditions mean slugs will be

Mosquitoes and gnats may be moderately active, especially near the sheltered bay shores and damp garden areas. Those enjoying the waterfront or walking pets should be mindful of potential bites

With overcast skies and high humidity, mosquitoes will be active near Lake Vancouver’s edges and in local parks. Evening strolls or lakeside activities could encounter these biters

The combination of high humidity and overcast conditions creates ideal activity for mosquitoes and ticks within the wildlife refuge and forested trails. Anyone venturing into dense vegetation should take significant precautions against bites

A cool, humid, and overcast day means biting insect activity is generally low, though a few gnats might be present in sheltered park areas. Enjoy the Puget Sound views with minimal bug interruption

Mosquitoes and midges are likely to be present in damp, shaded areas of suburban green spaces and along property lines. Residents doing yard work or spending time outdoors should consider repellent

Overcast and humid conditions favor mosquitoes and gnats, particularly around residential water features or overgrown areas. Outdoor activities after dusk may invite bites from these persistent insects

High humidity and overcast skies provide prime conditions for abundant mosquitoes near the Columbia and Lewis Rivers, alongside increased tick activity in wooded areas. Outdoor enthusiasts should wear protective clothing and use strong repellents

Despite the humidity, coastal winds and cooler temperatures generally keep biting insect populations low, though a few persistent gnats might emerge near sheltered freshwater ponds. Enjoy the beach with minimal concern for bites

Mosquitoes and gnats will be moderately active in damp garden areas and near Salmon Creek due to the humidity and overcast skies. Those walking dogs or gardening should be prepared

The rural, wooded environment along the highway, combined with high humidity and overcast skies, presents a high risk for mosquitoes and ticks. Hikers and those stopping in natural areas should use comprehensive bite prevention

Evening activities near the Columbia River could attract mosquitoes, while gnats might be present around garden areas

Expect elevated mosquito activity near the Yakima River and in agricultural zones, with biting flies also a nuisance during daytime outdoor work

Mosquitoes will be present near Columbia Park and residential green spaces, particularly during dusk patio gatherings

Abundant mosquitoes are likely near the confluence of the Columbia and Snake Rivers, with stable flies active in areas