10-Day Weather Forecast - Port Isabel, TX

Sunny. Highs in the lower 80s. Southeast winds 10 to 15 mph.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s. Southeast winds 10 to 15 mph.

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

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the lower 80s.

Mostly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the lower 80s.

Mostly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the lower 80s.

Mostly cloudy. Lows in the upper 60s.

Partly sunny. Highs in the mid 80s.

Mostly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 72F with an average humidity of 90%. Winds will be 10 mph from the SE.

Mostly cloudy with a 55% chance for rain and thunderstorms. High temperature around 79F. Dew point will be around 72F with an average humidity of 83%. Winds will be 10 mph from the SE.

Partly cloudy with a 45% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 71F with an average humidity of 89%. Winds will be 9 mph from the SE.

Partly cloudy with a 50% chance for rain and thunderstorms. High temperature around 79F. Dew point will be around 72F with an average humidity of 85%. Winds will be 11 mph from the SE.

Partly cloudy. Low temperature around 73F. Dew point will be around 71F with an average humidity of 87%. Winds will be 11 mph from the SE.

Partly cloudy. High temperature around 80F. Dew point will be around 71F with an average humidity of 82%. Winds will be 10 mph from the S.

Mostly clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 71F. Dew point will be around 68F with an average humidity of 81%. Winds will be 3 mph from the SE.