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

76°F

24°C

Humidity 97%
Wind Speed E 3 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 1 Sep 5:52 am CDT
Extended Forecast for

Harlingen TX

  • Labor Day

    Labor Day: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 97. Calm wind becoming east 5 to 9 mph in the afternoon.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly clear, with a low around 77. East wind 5 to 10 mph becoming light and variable in the evening.

    Low: 77 °F

    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 96. North northwest wind 3 to 8 mph. Chance of precipitation is 70%.

    High: 96 °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 75. East northeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 97. Light and variable wind becoming east northeast 5 to 9 mph in the morning.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. East wind 5 to 9 mph becoming light and variable after midnight.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. Calm wind becoming east 5 to 9 mph in the afternoon.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. South southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Light south southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Labor Day
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 97. Calm wind becoming east 5 to 9 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly clear, with a low around 77. East wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 96. North northwest wind 3 to 8 mph. Chance of precipitation is 70%.
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 75. East northeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 97. Light and variable wind becoming east northeast 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 74. East wind 5 to 9 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 98. Calm wind becoming east 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74. South southeast wind 5 to 10 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 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 77. South southeast wind 6 to 11 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 95. Southeast wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 76.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 92. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Harlingen TX
 26.19°N 97.67°W
Last Update:
6:30 am CDT Sep 1, 2025
Forecast Valid:
6am CDT Sep 1, 2025-6pm CDT Sep 7, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation