10-Day Weather Forecast - Mattawa, WA

Mostly cloudy. Highs in the mid 40s to lower 50s. East wind 5 to 10 mph.

Mostly cloudy. Areas of fog. Lows in the lower to mid 30s. Northeast wind 5 to 10 mph.

Partly sunny. Areas of fog and freezing fog. Cooler. Highs in the mid 30s to lower 40s. East wind 5 to 10 mph.

Cloudy. Patchy freezing fog. Lows in the upper 20s to lower 30s.

Cloudy. Highs in the mid 30s to lower 40s. Lows in the mid 20s to lower 30s.

Cloudy. Highs in the mid 30s to lower 40s. Lows in the mid 20s to lower 30s.

Cloudy. Highs in the mid 30s to lower 40s. Lows in the mid 20s to lower 30s.

Mostly cloudy. Patchy freezing fog. Lows in the mid to upper 20s.

Mostly sunny. Highs in the lower 40s.

Partly cloudy. Patchy freezing fog. Lows in the mid to upper 20s. Highs around 40.

Partly cloudy. Patchy freezing fog. Lows in the mid to upper 20s. Highs around 40.

Partly cloudy. Low temperature around 28F. Dew point will be around 28F with an average humidity of 81%. Winds will be 2 mph from the NW.

Mostly sunny. High temperature around 39F. Dew point will be around 29F with an average humidity of 82%. Winds will be 2 mph from the NE.

Mostly clear. Low temperature around 30F. Dew point will be around 28F with an average humidity of 84%. Winds will be 0 mph from the NE.

Partly cloudy. High temperature around 39F. Dew point will be around 30F with an average humidity of 82%. Winds will be 1 mph from the SE.

Clear. Low temperature around 31F. Dew point will be around 28F with an average humidity of 81%. Winds will be 2 mph from the W.

Sunny. High temperature around 38F. Dew point will be around 28F with an average humidity of 76%. Winds will be 1 mph from the NW.

Clear. Low temperature around 30F. Dew point will be around 26F with an average humidity of 76%. Winds will be 1 mph from the SW.