10-Day Weather Forecast - Saint Helens, OR

Mostly sunny. Patchy dense fog. Highs in the lower 50s. Winds light.

Partly cloudy. Patchy dense fog. Lows around 40. Winds light.

Patchy dense fog in the morning. Sunny. Highs in the mid 50s. Winds light.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 30s. Winds light.

Sunny. Highs in the mid 50s.

Mostly clear. Lows in the mid 30s.

Sunny. Highs in the mid 50s.

Mostly clear. Lows in the mid 30s.

Sunny. Highs in the mid 50s.

Mostly clear. Lows in the mid 30s.

Mostly sunny. Highs in the lower 50s.

Mostly cloudy. Lows in the mid 30s.

Partly sunny with a 20 percent chance of rain. Highs in the lower 50s.

Cloudy. Low temperature around 36F. Dew point will be around 35F with an average humidity of 88%. Winds will be 1 mph from the N.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 42F. Dew point will be around 36F with an average humidity of 86%. Winds will be 0 mph from the N.

Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 34F. Dew point will be around 33F with an average humidity of 89%. Winds will be 1 mph from the N.

Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 40F. Dew point will be around 33F with an average humidity of 84%. Winds will be 1 mph from the N.

Cloudy with a slight chance of rain-snow mix. Chance of precipitation 30%. Low temperature around 31F. Dew point will be around 30F with an average humidity of 87%. Winds will be 1 mph from the N.