Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Partly Cloudy

95°F

35°C

Humidity 54%
Wind Speed SE 12 G 20 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index108°F (42°C)
Last update 8 Sep 10:52 am CDT
Extended Forecast for

Harlingen, Rio Grande Valley International Airport TX

Heat Advisory September 8, 12:00pm until September 8, 06:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 101. Heat index values as high as 112. East southeast wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 101 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 76. East southeast wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 24 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm.  Mostly sunny and hot, with a high near 100. Heat index values as high as 111. Light east southeast wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 100 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. East southeast wind 5 to 14 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Light south southeast wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South southeast wind 10 to 17 mph, with gusts as high as 24 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 102. Breezy, with a south wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 102 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. Breezy, with a south southeast wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 77 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 102. Breezy, with a south southeast wind 11 to 20 mph, with gusts as high as 32 mph.

    High: 102 °F

    Hot and
    Breezy

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 101. Heat index values as high as 112. East southeast wind 10 to 16 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 76. East southeast wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 24 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 111. Light east southeast wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 76. East southeast wind 5 to 14 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 102. Light south southeast wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 76. South southeast wind 10 to 17 mph, with gusts as high as 24 mph.
Friday
Sunny and hot, with a high near 102. Breezy, with a south wind 10 to 18 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 77. Breezy, with a south southeast wind 14 to 18 mph, with gusts as high as 29 mph.
Saturday
Sunny and hot, with a high near 102. Breezy, with a south southeast wind 11 to 20 mph, with gusts as high as 32 mph.
Saturday Night
Mostly clear, with a low around 78. Breezy, with a southeast wind 11 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 101. Breezy, with a southeast wind 10 to 18 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 77. Breezy.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101.
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ABOUT THIS FORECAST

 
Point Forecast:
Harlingen, Rio Grande Valley International Airport TX
 26.24°N 97.65°W
11:18 am CDT Sep 8, 2026
11am CDT Sep 8, 2026-6pm CDT Sep 14, 2026
 
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