10-Day Weather Forecast - Saint Helens, WA

Mostly cloudy in the morning then becoming partly sunny. Highs in the mid 60s. West wind 5 to 10 mph.

Mostly cloudy. Lows in the upper 40s. Northwest wind 5 to 10 mph.

Mostly cloudy in the morning then becoming mostly sunny. Highs around 70. Northwest wind 5 to 10 mph.

Partly cloudy. Lows in the upper 40s. North wind 5 to 10 mph.

Sunny. Highs in the upper 70s.

Mostly clear. Lows in the upper 40s.

Sunny. Highs in the mid 70s.

Mostly clear. Lows in the upper 40s.

Mostly sunny. Highs in the lower 70s.

Partly cloudy in the evening then clearing. Lows in the mid 40s.

Mostly sunny. Highs in the lower 70s.

Mostly cloudy with a 40 percent chance of rain. Lows in the mid 40s.

Partly sunny with a 40 percent chance of rain. Highs in the mid 60s.

Partly cloudy. Low temperature around 44F. Dew point will be around 43F with an average humidity of 87%. Winds will be 3 mph from the W.

Sunny. High temperature around 69F. Dew point will be around 48F with an average humidity of 69%. Winds will be 4 mph from the N.

Clear. Low temperature around 46F. Dew point will be around 47F with an average humidity of 80%. Winds will be 3 mph from the N.

Sunny. High temperature around 72F. Dew point will be around 51F with an average humidity of 65%. Winds will be 3 mph from the NW.

Clear. Low temperature around 47F. Dew point will be around 49F with an average humidity of 79%. Winds will be 1 mph from the N.

Sunny. High temperature around 70F. Dew point will be around 49F with an average humidity of 64%. Winds will be 3 mph from the NW.

Clear. Low temperature around 44F. Dew point will be around 45F with an average humidity of 76%. Winds will be 2 mph from the NW.