Weather in Dayton, WA
Updated 2026-09-26 08:00 local time · ZIP codes 99328
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
44°14% rain46°14% rain49°11% rain52°10% rain
54°5% rain
55°1% rain56°0% rain57°0% rain57°1% rain56°5% rain56°9% rain
56°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 14%).
It feels like 40°F with winds near 8 mph.
57°F, 0% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 20 mph.
Current temperature is 44°F, wind 8 mph, rain chance up to 14%.
UV index is 0.
Local weather characteristics in Dayton
Washington has a mild, wetter marine climate west of the Cascades and a much drier interior climate east of the mountains. Terrain creates strong local rain, snow and temperature differences.
Dayton is part of the West weather region. The forecast point is near 46.32°N latitude and 117.97°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Dayton weather today
Overcast and 44°F in Dayton, WA. Today's high is 57°F with a 7% rain chance. Winds are around 8 mph with gusts near 20 mph. Relative humidity is 59%, pressure is 30.12 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Dayton
Sunrise is at 06:44 AM and sunset is at 06:42 PM. Tomorrow's forecast calls for Overcast with a high near 59°F and a low near 50°F. The maximum rain chance is 7%.