Weather in Sumas, Washington
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:57 PM ET · Refreshes every hour
66°F
Partly cloudy
Feels like 65°F
54%
Humidity
10 mph
Wind Speed
About Weather in Sumas
Sumas is located in Washington (coordinates: 48.995534°N, 122.268453°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.