Weather in Sumas, WA
Updated 2026-09-26 07:00 local time · ZIP codes 98295
Light rain shower
No government weather alerts were returned for this location at the latest update.
Next hours
47°41% rain
47°30% rain
50°34% rain52°29% rain54°30% rain55°29% rain57°26% rain58°14% rain59°8% rain58°13% rain
57°14% rain56°17% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 41% over the next 12 hours.
It feels like 44°F with winds near 2 mph.
59°F, 8% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 16 mph.
Current temperature is 47°F, wind 2 mph, rain chance up to 41%.
UV index is 0.
Local weather characteristics in Sumas
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.
Sumas is part of the West weather region. The forecast point is near 49.00°N latitude and 122.26°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.
Sumas weather today
Light rain shower and 47°F in Sumas, WA. Today's high is 59°F with a 78% rain chance. Winds are around 2 mph with gusts near 3 mph. Relative humidity is 94%, pressure is 30.15 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Sumas
Sunrise is at 07:01 AM and sunset is at 06:59 PM. Tomorrow's forecast calls for Sunny with a high near 63°F and a low near 41°F. The maximum rain chance is 8%.