10-Day Weather Forecast - Port Arthur, WA

Mostly cloudy. Patchy dense fog in the morning. Highs near 50. Northwest wind around 10 mph.

Partly cloudy. Patchy fog after midnight. Lows in the mid 30s to lower 40s. Northwest wind to 10 mph in the evening becoming light.

Sunny. Highs near 50. Light wind.

Mostly clear. Lows in the mid 30s to lower 40s. Light wind.

Sunny. Highs near 50.

Mostly clear. Lows in the mid to upper 30s.

Sunny. Patchy fog in the morning. Highs in the upper 40s.

Mostly clear. Patchy fog after midnight. Lows in the mid to upper 30s.

Mostly sunny. Patchy fog in the morning. Highs in the mid to upper 40s.

Partly cloudy. Patchy fog after midnight. Lows in the upper 30s.

Partly sunny. Patchy fog in the morning. Highs in the mid to upper 40s.

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 30s.

Mostly cloudy. Patchy fog in the morning. Highs in the mid to upper 40s.

Cloudy. Low temperature around 41F. Dew point will be around 39F with an average humidity of 89%. Winds will be 2 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 44F. Dew point will be around 39F with an average humidity of 87%. Winds will be 3 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 40F. Dew point will be around 39F with an average humidity of 89%. Winds will be 4 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 44F. Dew point will be around 39F with an average humidity of 87%. Winds will be 6 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 41F. Dew point will be around 39F with an average humidity of 89%. Winds will be 6 mph from the SE.