10-Day Weather Forecast - Sumas, WA

Sunny. Highs in the lower to mid 50s. Light wind.

Clear. Lows in the mid 30s to lower 40s. Light wind.

Sunny. Highs in the upper 40s to mid 50s. East wind to 10 mph.

Clear. Lows in the mid to upper 30s. Light wind.

Sunny. Highs in the upper 40s to mid 50s. Light wind.

Mostly clear. Lows in the mid to upper 30s.

Partly sunny. Highs near 50.

Partly cloudy. Lows in the mid 30s.

Mostly sunny. Highs near 50.

Partly cloudy. Lows in the lower to mid 30s.

Partly sunny with a slight chance of rain and snow. Snow level near 1500 feet. Highs in the mid to upper 40s.

Partly cloudy in the evening then becoming mostly cloudy. A chance of rain and snow. Snow level near 1500 feet. Lows in the lower to mid 30s.

Mostly cloudy with a chance of rain and snow. Snow level near 1000 feet. Highs in the lower to mid 40s.

Cloudy with a chance of rain-snow mix. Chance of precipitation 45%. Low temperature around 29F. Dew point will be around 26F with an average humidity of 79%. Winds will be 6 mph from the E.

Cloudy with a chance of rain-snow mix. Chance of precipitation 50%. High temperature around 36F. Dew point will be around 28F with an average humidity of 79%. Winds will be 5 mph from the E.

Cloudy with probable rain-snow mix. Chance of precipitation 65%. Low temperature around 30F. Dew point will be around 28F with an average humidity of 84%. Winds will be 5 mph from the E.

Cloudy with probable rain-snow mix. Chance of precipitation 65%. High temperature around 38F. Dew point will be around 31F with an average humidity of 85%. Winds will be 5 mph from the E.

Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 33F. Dew point will be around 31F with an average humidity of 85%. Winds will be 4 mph from the E.