10-Day Weather Forecast - Newcastle, WA

Mostly sunny. Highs in the lower to mid 60s. South wind to 10 mph becoming southwest around 10 mph in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid to upper 40s. Southwest wind to 10 mph becoming south after midnight.

Mostly cloudy. Highs near 60. South wind to 10 mph becoming southwest in the afternoon.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower to mid 40s. Light wind.

Sunny. Highs in the mid 60s to lower 70s. Light wind.

Mostly clear. Lows in the mid to upper 40s.

Mostly sunny. Highs in the lower to mid 70s.

Partly cloudy. Lows in the upper 40s.

Partly sunny. Highs in the upper 60s.

Mostly cloudy. Lows in the mid to upper 40s.

Mostly sunny. Highs in the lower 70s.

Partly cloudy. Lows near 50.

Mostly sunny. Highs in the mid to upper 70s.

Clear. Low temperature around 49F. Dew point will be around 49F with an average humidity of 77%. Winds will be 3 mph from the N.

Sunny. High temperature around 76F. Dew point will be around 50F with an average humidity of 59%. Winds will be 3 mph from the NW.

Clear. Low temperature around 48F. Dew point will be around 48F with an average humidity of 73%. Winds will be 2 mph from the SE.

Mostly cloudy. High temperature around 68F. Dew point will be around 48F with an average humidity of 66%. Winds will be 3 mph from the W.

Mostly clear. Low temperature around 44F. Dew point will be around 44F with an average humidity of 76%. Winds will be 2 mph from the SE.