10-Day Weather Forecast - Grand Coulee, WA

Sunny. Highs in the mid to upper 50s. Light wind becoming southwest 5 to 10 mph in the afternoon.

Mostly clear. Lows in the 30s. South wind 5 to 10 mph.

Mostly cloudy. Highs in the 50s. South wind 5 to 15 mph with gusts up to 25 mph.

Cloudy with a 50 percent chance of rain. Lows in the upper 30s to lower 40s. Southwest wind 5 to 15 mph with gusts up to 25 mph.

Mostly cloudy with a 50 percent chance of rain. Highs in the lower to mid 50s.

Mostly clear with a 50 percent chance of rain. Lows in the mid to upper 30s.

Partly sunny. Highs in the lower to mid 50s.

Partly cloudy. A 20 percent chance of rain. Lows in the lower to mid 30s. Highs in the lower to mid 50s.

Partly cloudy. A 20 percent chance of rain. Lows in the lower to mid 30s. Highs in the lower to mid 50s.

Breezy. Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s to lower 40s. Highs in the mid 50s to lower 60s.

Breezy. Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s to lower 40s. Highs in the mid 50s to lower 60s.

Breezy. Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s to lower 40s. Highs in the mid 50s to lower 60s.

Breezy. Partly sunny with a chance of rain or snow. Highs in the mid to upper 50s. Chance of precipitation 20 percent.

Mostly clear. Low temperature around 34F. Dew point will be around 26F with an average humidity of 59%. Winds will be 6 mph from the W.

Partly cloudy. High temperature around 50F. Dew point will be around 23F with an average humidity of 43%. Winds will be 8 mph from the W.

Mostly clear. Low temperature around 32F. Dew point will be around 24F with an average humidity of 59%. Winds will be 4 mph from the W.

Mostly sunny. High temperature around 51F. Dew point will be around 24F with an average humidity of 44%. Winds will be 5 mph from the W.

Clear. Low temperature around 33F. Dew point will be around 26F with an average humidity of 62%. Winds will be 2 mph from the W.