An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology Colville Confederated Tribes Environmental Protection Agency Spokane Regional Clean Air Agency An Air Quality Alert has been issued for Adams, Asotin, Chelan, Douglas, Ferry, Garfield, Grant, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, and Whitman Counties until further notice due to current and expected smoke from regional fires. Particulate matter (PM2.5) may reach Very Unhealthy levels for areas directly downwind from active wildfires. Other areas may reach Unhealthy for Sensitive Groups or worse. Intermittent clearing may occur due to windy conditions, but smoke production continues to be significant. When air quality is Unhealthy, everyone should reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air. When air quality is Very Unhealthy, everyone should reduce exposure. Stay inside and filter indoor air to keep it cleaner. Go elsewhere for cleaner air, if needed.
Weather in Sunnyside, WA
Updated 2026-08-11 10:45 local time · ZIP codes 98944

Sunny
Active alerts
Next hours
76°0% rain
92°0% rain
94°0% rain
95°0% rain
95°0% rain
96°0% rain
96°0% rain
94°0% rain
90°0% rain
84°0% rain
80°1% rain
74°1% rain3-day weather forecast



Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 1%).
It feels like 75°F with winds near 4 mph.
84°F, 0% rain chance and 9 mph wind.
Visibility is around 10 mi; gusts may reach 26 mph.
Current temperature is 76°F, wind 4 mph, rain chance up to 1%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Sunnyside weather today
Sunny and 76°F in Sunnyside, WA. Today's high is 96°F with a 0% rain chance. Winds are around 4 mph with gusts near 4 mph. Relative humidity is 41%, pressure is 29.99 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Sunnyside
Sunrise is at 05:51 AM and sunset is at 08:15 PM. Tomorrow's forecast calls for Sunny with a high near 91°F and a low near 62°F. The maximum rain chance is 1%.