10-Day Weather Forecast - Port Arthur, TX

Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Less humid with highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 40 percent. Wind chill values as low as 120 below in the afternoon.

Showers with a chance of thunderstorms in the evening then showers likely after midnight. Cooler with lows in the mid 50s. Northwest winds 10 to 15 mph becoming north 15 to 20 mph after midnight. Chance of rain 80 percent.

Mostly cloudy in the morning then becoming mostly sunny. Cooler. Less humid with highs in the lower 70s. Northeast winds 15 to 20 mph.

Mostly cloudy. Lows in the upper 50s. Highs in the mid 70s.

Mostly cloudy. Lows in the upper 50s. Highs in the mid 70s.

Mostly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Mostly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Mostly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Partly sunny. A chance of showers in the afternoon. Highs around 80. Chance of rain 30 percent.

Partly cloudy. Lows in the upper 60s.

Partly sunny. Highs around 80.

Partly cloudy. Low temperature around 73F. Dew point will be around 69F with an average humidity of 85%. Winds will be 11 mph from the SE.

Cloudy with a 50% chance for rain and thunderstorms. High temperature around 79F. Dew point will be around 70F with an average humidity of 78%. Winds will be 11 mph from the S.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 73F. Dew point will be around 69F with an average humidity of 83%. Winds will be 7 mph from the S.

Partly cloudy with a 45% chance for rain and thunderstorms. High temperature around 79F. Dew point will be around 68F with an average humidity of 75%. Winds will be 5 mph from the S.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 71F. Dew point will be around 66F with an average humidity of 78%. Winds will be 4 mph from the S.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 78F. Dew point will be around 66F with an average humidity of 72%. Winds will be 4 mph from the SE.

Partly cloudy. Low temperature around 70F. Dew point will be around 66F with an average humidity of 77%. Winds will be 4 mph from the S.