10-Day Weather Forecast - Sumas, WA

Sunny. Highs in the mid 70s to lower 80s. East wind to 10 mph becoming west in the afternoon.

Mostly clear. Lows in the lower to mid 50s. West wind around 10 mph in the evening becoming light.

Sunny. Highs in the 70s. Light wind becoming southwest around 10 mph in the afternoon.

Clear. Lows in the lower 50s.

Sunny. Highs near 70.

Partly cloudy. Lows in the upper 40s.

Mostly sunny. Highs in the mid 60s to lower 70s.

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

Partly sunny. Highs in the mid 60s.

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

Partly sunny with a slight chance of showers. Highs in the mid to upper 60s.

Mostly clear. Low temperature around 45F. Dew point will be around 46F with an average humidity of 90%. Winds will be 3 mph from the W.

Partly cloudy. High temperature around 79F. Dew point will be around 48F with an average humidity of 49%. Winds will be 5 mph from the W.

Partly cloudy. Low temperature around 49F. Dew point will be around 48F with an average humidity of 75%. Winds will be 3 mph from the W.

Mostly cloudy. High temperature around 80F. Dew point will be around 49F with an average humidity of 48%. Winds will be 3 mph from the W.

Partly cloudy. Low temperature around 49F. Dew point will be around 48F with an average humidity of 73%. Winds will be 3 mph from the SE.

Mostly sunny. High temperature around 78F. Dew point will be around 50F with an average humidity of 52%. Winds will be 4 mph from the W.

Clear. Low temperature around 47F. Dew point will be around 46F with an average humidity of 73%. Winds will be 3 mph from the SE.