10-Day Weather Forecast - Thornton, WA

Partly sunny. Highs in the upper 40s to mid 50s. South wind 5 to 15 mph.

Mostly cloudy. Lows in the mid to upper 30s. South wind 5 to 10 mph.

Partly sunny. Highs in the upper 40s to mid 50s. Southeast wind 5 to 10 mph.

Mostly cloudy. Lows in the lower to mid 30s. Light wind.

Mostly clear. Highs in the upper 40s to lower 50s. Lows in the upper 20s to mid 30s.

Mostly clear. Highs in the upper 40s to lower 50s. Lows in the upper 20s to mid 30s.

Mostly clear. Patchy freezing fog. Highs in the 40s. Lows in the mid 20s to lower 30s.

Mostly clear. Patchy freezing fog. Highs in the 40s. Lows in the mid 20s to lower 30s.

Mostly clear. Patchy freezing fog. Highs in the 40s. Lows in the mid 20s to lower 30s.

Mostly clear. Patchy freezing fog. Highs in the 40s. Lows in the mid 20s to lower 30s.

Mostly clear. Patchy freezing fog. Highs in the 40s. Lows in the mid 20s to lower 30s.

Mostly clear. Patchy freezing fog. Highs in the 40s. Lows in the mid 20s to lower 30s.

Mostly sunny. Highs in the lower to mid 40s.

Clear. Low temperature around 30F. Dew point will be around 27F with an average humidity of 84%. Winds will be 1 mph from the SE.

Mostly sunny. High temperature around 39F. Dew point will be around 29F with an average humidity of 73%. Winds will be 3 mph from the SE.

Partly cloudy. Low temperature around 31F. Dew point will be around 28F with an average humidity of 84%. Winds will be 2 mph from the S.

Mostly sunny. High temperature around 38F. Dew point will be around 29F with an average humidity of 73%. Winds will be 3 mph from the SE.

Partly cloudy. Low temperature around 30F. Dew point will be around 27F with an average humidity of 83%. Winds will be 2 mph from the S.