10-Day Weather Forecast - Castle Rock, WA

Mostly cloudy in the morning then becoming mostly sunny. Highs in the upper 70s. North wind 5 to 10 mph.

Partly cloudy in the evening then clearing. Lows in the mid 50s. North wind 5 to 10 mph.

Sunny. Highs in the upper 80s. Winds light.

Mostly clear. Lows in the mid 50s.

Sunny. Highs in the lower 80s.

Mostly clear. Lows around 50.

Mostly sunny. Highs in the upper 70s.

Clear. Lows in the upper 40s.

Mostly sunny. Highs in the mid 70s.

Mostly clear. Lows in the upper 40s.

Mostly sunny. Highs in the mid 70s.

Mostly clear. Low temperature around 43F. Dew point will be around 41F with an average humidity of 72%. Winds will be 2 mph from the NW.

Mostly sunny. High temperature around 72F. Dew point will be around 44F with an average humidity of 56%. Winds will be 2 mph from the NW.

Clear. Low temperature around 45F. Dew point will be around 45F with an average humidity of 78%. Winds will be 2 mph from the NW.

Mostly sunny. High temperature around 74F. Dew point will be around 47F with an average humidity of 58%. Winds will be 2 mph from the NW.

Mostly clear. Low temperature around 49F. Dew point will be around 48F with an average humidity of 75%. Winds will be 1 mph from the NW.

Sunny. High temperature around 74F. Dew point will be around 49F with an average humidity of 59%. Winds will be 2 mph from the W.

Clear. Low temperature around 47F. Dew point will be around 47F with an average humidity of 75%. Winds will be 2 mph from the W.