10-Day Weather Forecast - Prosser, WA

Mostly cloudy. Highs in the mid to upper 40s. Light wind becoming south 5 to 10 mph in the afternoon.

Mostly cloudy. Lows in the lower to mid 30s. Light wind becoming south 5 to 10 mph overnight.

Partly sunny. Highs in the lower to mid 50s. South wind 5 to 10 mph with gusts to around 20 mph.

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

Mostly cloudy. Patchy fog. Highs in the mid 40s to lower 50s. Lows in the lower to mid 30s.

Mostly cloudy. Patchy fog. Highs in the mid 40s to lower 50s. Lows in the lower to mid 30s.

Mostly cloudy. Patchy fog. Highs in the mid 40s to lower 50s. Lows in the lower to mid 30s.

Partly cloudy. Lows in the mid 20s to lower 30s. Highs in the upper 30s to mid 40s.

Partly cloudy. Lows in the mid 20s to lower 30s. Highs in the upper 30s to mid 40s.

Partly cloudy. Lows in the mid 20s to lower 30s. Highs in the upper 30s to mid 40s.

Partly cloudy. Lows in the mid 20s to lower 30s. Highs in the upper 30s to mid 40s.

Partly cloudy. Lows in the mid 20s to lower 30s. Highs in the upper 30s to mid 40s.

Partly cloudy. Lows in the mid 20s to lower 30s. Highs in the upper 30s to mid 40s.

Clear. Low temperature around 27F. Dew point will be around 26F with an average humidity of 87%. Winds will be 2 mph from the NW.

Sunny. High temperature around 42F. Dew point will be around 28F with an average humidity of 70%. Winds will be 1 mph from the N.

Clear. Low temperature around 26F. Dew point will be around 26F with an average humidity of 85%. Winds will be 1 mph from the W.

Sunny. High temperature around 42F. Dew point will be around 28F with an average humidity of 69%. Winds will be 1 mph from the SE.

Mostly clear. Low temperature around 27F. Dew point will be around 26F with an average humidity of 86%. Winds will be 1 mph from the SW.