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 70%
Wind Speed E 15 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 31 Aug 7:52 pm CDT
Extended Forecast for

Harlingen, Rio Grande Valley International Airport TX

  • Tonight

    Tonight: Mostly clear, with a low around 75. East southeast wind 5 to 10 mph becoming light southeast after midnight.

    Low: 75 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 50 percent chance of showers and thunderstorms, mainly between 11am and 5pm. Mostly sunny, with a high near 96. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 96 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. East wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 40%.

    Low: 74 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 95. West northwest wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 60%.

    High: 95 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. East northeast wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Light and variable wind becoming east northeast 5 to 10 mph in the morning.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. East wind 5 to 10 mph becoming light and variable after midnight.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. South southeast wind 5 to 13 mph.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 75. East southeast wind 5 to 10 mph becoming light southeast after midnight.
Labor Day
A 50 percent chance of showers and thunderstorms, mainly between 11am and 5pm. Mostly sunny, with a high near 96. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Monday Night
A slight chance of showers between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. East wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 95. West northwest wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. East northeast wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Light and variable wind becoming east northeast 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 72. East wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 98. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 72. South southeast wind 5 to 13 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Light south southeast wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 75. Southeast wind 6 to 14 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 95.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 93. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Harlingen, Rio Grande Valley International Airport TX
 26.24°N 97.65°W
Last Update:
7:45 pm CDT Aug 31, 2025
Forecast Valid:
8pm CDT Aug 31, 2025-6pm CDT Sep 7, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation