10-Day Weather Forecast - Grand Coulee, WA

Mostly sunny. Highs in the upper 50s to lower 60s. Northeast wind 5 to 10 mph shifting to the southwest in the afternoon.

Cloudy. Lows in the lower to mid 40s. South wind 5 to 10 mph.

Rain. Highs in the 50s. South wind 5 to 15 mph with gusts up to 30 mph. Chance of precipitation 90 percent.

Windy. Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s to lower 40s.

Breezy. Partly sunny with a 20 percent chance of rain. Highs in the 50s.

Mostly clear. Lows in the upper 20s to lower 30s. Highs in the lower to mid 50s.

Mostly clear. Lows in the upper 20s to lower 30s. Highs in the lower to mid 50s.

Mostly clear. Lows in the upper 20s to lower 30s. Highs in the lower to mid 50s.

Partly cloudy. Highs in the mid 50s to lower 60s. Lows in the lower to mid 30s.

Partly cloudy. Highs in the mid 50s to lower 60s. Lows in the lower to mid 30s.

Partly cloudy. Highs in the mid 50s to lower 60s. Lows in the lower to mid 30s.

Mostly cloudy. Low temperature around 43F. Dew point will be around 33F with an average humidity of 51%. Winds will be 2 mph from the SW.

Partly cloudy. High temperature around 61F. Dew point will be around 35F with an average humidity of 49%. Winds will be 4 mph from the SW.

Mostly cloudy. Low temperature around 40F. Dew point will be around 33F with an average humidity of 58%. Winds will be 5 mph from the SW.

Partly cloudy. High temperature around 56F. Dew point will be around 31F with an average humidity of 48%. Winds will be 5 mph from the SW.

Cloudy. Low temperature around 39F. Dew point will be around 30F with an average humidity of 55%. Winds will be 3 mph from the SW.

Cloudy. High temperature around 55F. Dew point will be around 33F with an average humidity of 54%. Winds will be 3 mph from the S.

Partly cloudy. Low temperature around 40F. Dew point will be around 34F with an average humidity of 63%. Winds will be 3 mph from the S.