10-Day Weather Forecast - Grand Coulee, WA

Cloudy. Patchy fog in the morning. A chance of rain in the afternoon. Highs in the 40s. Southeast wind 5 to 10 mph. Chance of precipitation 50 percent. Rainfall amounts less than a tenth of an inch.

Cloudy with a 50 percent chance of rain. Lows in the upper 30s to lower 40s. South wind 5 to 15 mph. Rainfall amounts less than a quarter of an inch.

Rain likely. Highs in the mid to upper 40s. East wind 5 to 10 mph. Chance of precipitation 70 percent.

Cloudy with a 50 percent chance of rain. Lows in the lower to mid 30s. Northwest wind 5 to 15 mph with gusts up to 20 mph.

Partly sunny with a 20 percent chance of rain. Highs in the mid 40s to lower 50s.

Mostly clear. Lows around 30. Highs in the mid to upper 40s.

Mostly clear. Lows around 30. Highs in the mid to upper 40s.

Mostly clear. Lows around 30. Highs in the mid to upper 40s.

Mostly clear. Lows around 30. Highs in the mid to upper 40s.

Mostly cloudy. Lows in the lower 30s. Highs in the mid to upper 40s.

Mostly cloudy. Lows in the lower 30s. Highs in the mid to upper 40s.

Mostly cloudy. Lows in the lower 30s. Highs in the mid to upper 40s.

Mostly cloudy with a chance of rain or snow. Highs in the mid to upper 40s. Chance of precipitation 20 percent.

Cloudy. Low temperature around 35F. Dew point will be around 33F with an average humidity of 84%. Winds will be 1 mph from the S.

Cloudy. High temperature around 39F. Dew point will be around 33F with an average humidity of 82%. Winds will be 0 mph from the S.

Cloudy. Low temperature around 34F. Dew point will be around 32F with an average humidity of 85%. Winds will be 2 mph from the N.

Mostly sunny. High temperature around 39F. Dew point will be around 31F with an average humidity of 76%. Winds will be 3 mph from the N.

Clear. Low temperature around 32F. Dew point will be around 29F with an average humidity of 80%. Winds will be 1 mph from the NW.