Harlingen, TX Weather - Tomorrow’s Forecast

Monday

Sunny

High:
99°F

Sunny, with a high near 99. Heat index values as high as 109. South southeast wind 5 to 15 mph, with gusts as high as 24 mph.

Monday Night

Clear

Overnight low:
79°F

Clear, with a low around 79. Southeast wind 8 to 15 mph, with gusts as high as 25 mph.