10-Day Weather Forecast - Port Arthur, TX

Mostly sunny with a chance of showers and thunderstorms. Humid with highs around 90. Temperature falling into the mid 80s in the afternoon. Northeast winds around 5 mph, becoming southeast around 5 mph in the afternoon. Chance of rain 50 percent.

Partly cloudy. Humid with lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable.

Mostly sunny. A chance of showers and thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Temperature falling into the mid 80s in the afternoon. North winds around 5 mph, becoming south in the afternoon. Chance of rain 90 percent.

Partly cloudy in the evening, then mostly clear with a chance of showers after midnight. Humid with lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.

Mostly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 90s. Chance of rain 70 percent.

Partly cloudy in the evening, then becoming mostly clear. A chance of showers after midnight. Lows in the mid 70s. Chance of rain 40 percent.

Sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.

Mostly clear. Lows in the upper 70s.

Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent.

Partly cloudy. A chance of showers after midnight. Lows in the mid 70s. Chance of rain 30 percent.

Mostly sunny with a chance of showers and thunderstorms. Highs around 90. Chance of rain 50 percent.

Partly cloudy. Lows in the mid 70s.

Partly cloudy. Highs around 90.

Clear with a 55% chance for rain and thunderstorms. Low temperature around 82F. Dew point will be around 78F with an average humidity of 86%. Winds will be 4 mph from the S.

Sunny with a 50% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 77F with an average humidity of 83%. Winds will be 4 mph from the S.

Clear with a 50% chance for rain and thunderstorms. Low temperature around 81F. Dew point will be around 78F with an average humidity of 86%. Winds will be 4 mph from the S.

Sunny with a 55% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 78F with an average humidity of 83%. Winds will be 5 mph from the SE.

Mostly clear with a 55% chance for rain and thunderstorms. Low temperature around 81F. Dew point will be around 78F with an average humidity of 85%. Winds will be 4 mph from the SE.