10-Day Weather Forecast - Port Isabel, TX

Mostly cloudy in the morning then becoming partly sunny. Cooler with highs in the mid 60s. North winds 10 to 15 mph with gusts up to 25 mph.

Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Mostly cloudy. Not as cool with highs in the mid 70s. Southeast winds 10 to 15 mph.

Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50 percent.

Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 50 percent.

Partly cloudy. Lows in the mid 60s.

Mostly sunny. Highs around 80.

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

Partly sunny. Highs in the mid 70s.

Partly cloudy. Lows in the mid 60s.

Mostly sunny. Highs around 80.

Mostly clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 68F. Dew point will be around 67F with an average humidity of 92%. Winds will be 9 mph from the S.

Mostly sunny with widely scattered thunderstorms. Chance of storms 30%. High temperature around 77F. Dew point will be around 69F with an average humidity of 85%. Winds will be 9 mph from the S.

Clear. Low temperature around 69F. Dew point will be around 68F with an average humidity of 89%. Winds will be 5 mph from the SE.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 76F. Dew point will be around 68F with an average humidity of 84%. Winds will be 6 mph from the SE.

Clear. Low temperature around 68F. Dew point will be around 67F with an average humidity of 90%. Winds will be 5 mph from the SE.

Sunny. High temperature around 75F. Dew point will be around 68F with an average humidity of 85%. Winds will be 8 mph from the SE.

Clear. Low temperature around 68F. Dew point will be around 67F with an average humidity of 90%. Winds will be 6 mph from the SE.