10-Day Weather Forecast - Port Harlingen, TX

Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 60s. North winds 10 to 15 mph.

Mostly cloudy. Lows in the lower 50s. North winds 5 to 10 mph.

Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 60s. North winds 5 to 10 mph.

Mostly cloudy. Lows around 50.

Mostly sunny. Highs in the mid 70s.

Mostly clear. Lows in the upper 40s.

Sunny. Highs around 70.

Mostly clear. Lows in the upper 40s.

Mostly sunny. Highs in the mid 70s.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s.

Partly sunny. Cooler with highs in the mid 60s.

Clear. Low temperature around 50F. Dew point will be around 38F with an average humidity of 61%. Winds will be 7 mph from the N.

Partly cloudy. High temperature around 68F. Dew point will be around 47F with an average humidity of 58%. Winds will be 8 mph from the NE.

Mostly clear. Low temperature around 54F. Dew point will be around 48F with an average humidity of 77%. Winds will be 5 mph from the E.

Mostly cloudy. High temperature around 71F. Dew point will be around 54F with an average humidity of 66%. Winds will be 7 mph from the SE.

Cloudy. Low temperature around 59F. Dew point will be around 57F with an average humidity of 90%. Winds will be 9 mph from the SE.

Cloudy. High temperature around 71F. Dew point will be around 59F with an average humidity of 76%. Winds will be 8 mph from the SE.

Cloudy. Low temperature around 59F. Dew point will be around 58F with an average humidity of 93%. Winds will be 8 mph from the SE.