10-Day Weather Forecast - Port Isabel, TX

Partly sunny in the morning then clearing. Highs in the upper 80s. Southeast winds 15 to 20 mph with gusts up to 25 mph.

Mostly cloudy. Lows in the mid 70s. Southeast winds 10 to 15 mph.

Partly sunny. Highs in the mid 80s. Southeast winds 15 to 20 mph with gusts up to 25 mph.

Mostly cloudy. Lows in the mid 70s.

Mostly sunny. Highs around 90.

Mostly cloudy. A chance of showers and thunderstorms after midnight. Breezy cooler with lows in the mid 60s. Chance of rain 40 percent.

Mostly cloudy. A chance of showers in the morning. Breezy and much cooler with highs in the mid 70s. Chance of rain 40 percent.

Mostly cloudy and breezy. Lows in the lower 60s.

Mostly sunny. Highs in the upper 70s.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Low temperature around 72F. Dew point will be around 66F with an average humidity of 78%. Winds will be 12 mph from the SE.

Mostly sunny. High temperature around 78F. Dew point will be around 69F with an average humidity of 78%. Winds will be 14 mph from the SE.

Clear. Low temperature around 74F. Dew point will be around 70F with an average humidity of 83%. Winds will be 14 mph from the SE.

Partly cloudy. High temperature around 80F. Dew point will be around 72F with an average humidity of 83%. Winds will be 11 mph from the SE.

Partly cloudy. Low temperature around 75F. Dew point will be around 72F with an average humidity of 84%. Winds will be 10 mph from the SE.

Partly cloudy with widely scattered thunderstorms. Chance of storms 25%. High temperature around 81F. Dew point will be around 73F with an average humidity of 82%. Winds will be 9 mph from the SE.

Partly cloudy. Low temperature around 76F. Dew point will be around 73F with an average humidity of 85%. Winds will be 10 mph from the SE.