Weather in Sumner, WA
Updated 2026-09-26 08:45 local time · ZIP codes 98390
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
49°17% rain
56°4% rain59°2% rain63°1% rain64°1% rain
64°3% rain
65°10% rain64°10% rain63°10% rain60°10% rain
56°12% rain
53°9% 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 12%).
It feels like 46°F with winds near 2 mph.
64°F, 1% rain chance and 4 mph wind.
Visibility is around 6 mi; gusts may reach 19 mph.
Current temperature is 49°F, wind 2 mph, rain chance up to 12%.
UV index is 0.
Local weather characteristics in Sumner
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.
Sumner is part of the West weather region. The forecast point is near 47.20°N latitude and 122.24°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.
Sumner weather today
Cloudy and 49°F in Sumner, WA. Today's high is 65°F with a 10% rain chance. Winds are around 2 mph with gusts near 4 mph. Relative humidity is 80%, pressure is 30.18 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Sumner
Sunrise is at 07:01 AM and sunset is at 06:59 PM. Tomorrow's forecast calls for Overcast with a high near 67°F and a low near 44°F. The maximum rain chance is 8%.