National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Fair

86°F

30°C

Humidity 67%
Wind Speed SE 16 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 6 Aug 8:52 pm CDT
Extended Forecast for

Harlingen TX

  • Tonight

    Tonight: Mostly clear, with a low around 79. South southeast wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98. Heat index values as high as 108. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. East southeast wind 8 to 13 mph becoming light southeast after midnight. Winds could gust as high as 21 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 106. Light east northeast wind becoming east 6 to 11 mph in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. East wind 6 to 11 mph becoming light southeast after midnight. Winds could gust as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 96. Light east wind becoming east southeast 6 to 11 mph in the afternoon. Chance of precipitation is 30%.

    High: 96 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. South southeast wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 98. Southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. Southeast wind 9 to 16 mph, with gusts as high as 26 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 79. South southeast wind 6 to 13 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 98. Heat index values as high as 108. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 77. East southeast wind 8 to 13 mph becoming light southeast after midnight. Winds could gust as high as 21 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 106. Light east northeast wind becoming east 6 to 11 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 77. East wind 6 to 11 mph becoming light southeast after midnight. Winds could gust as high as 20 mph.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 96. Light east wind becoming east southeast 6 to 11 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 78. South southeast wind 5 to 13 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 98. Southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Mostly clear, with a low around 79. Southeast wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 98. Southeast wind 8 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 80. Southeast wind 10 to 16 mph, with gusts as high as 26 mph.
Wednesday
Sunny and hot, with a high near 100. Breezy.
Wednesday Night
Mostly clear, with a low around 80.
Thursday
Sunny and hot, with a high near 100. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Harlingen TX
 26.19°N 97.7°W
Last Update:
9:45 pm CDT Aug 6, 2026
Forecast Valid:
9pm CDT Aug 6, 2026-6pm CDT Aug 13, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation