10-Day Weather Forecast - Sumas, WA

Partly sunny. Highs in the 60s. Light wind.

Mostly cloudy. Lows near 50. Light wind.

Mostly cloudy. Highs in the upper 60s to mid 70s. Light wind.

Mostly cloudy. Lows in the mid to upper 40s.

Mostly sunny. Highs near 70.

Mostly cloudy in the evening then partly cloudy with a slight chance of rain after midnight. Lows in the upper 40s.

Mostly cloudy with a chance of rain. Highs in the lower to mid 60s.

Mostly cloudy with a chance of rain. Lows in the mid to upper 40s.

Mostly cloudy with a chance of rain. Highs near 60.

Mostly cloudy in the evening then becoming partly cloudy. A chance of rain. Lows in the lower 40s.

Mostly sunny with a slight chance of rain. Highs in the upper 50s.

Clear. Low temperature around 42F. Dew point will be around 44F with an average humidity of 87%. Winds will be 3 mph from the W.

Sunny. High temperature around 66F. Dew point will be around 44F with an average humidity of 58%. Winds will be 4 mph from the W.

Clear. Low temperature around 43F. Dew point will be around 45F with an average humidity of 81%. Winds will be 3 mph from the SE.

Sunny. High temperature around 68F. Dew point will be around 46F with an average humidity of 57%. Winds will be 4 mph from the W.

Mostly clear. Low temperature around 45F. Dew point will be around 46F with an average humidity of 79%. Winds will be 3 mph from the SE.

Mostly sunny. High temperature around 67F. Dew point will be around 46F with an average humidity of 58%. Winds will be 4 mph from the W.

Clear. Low temperature around 45F. Dew point will be around 46F with an average humidity of 80%. Winds will be 4 mph from the SE.