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

Hazardous Weather Conditions

Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Fair

93°F

34°C

Humidity 56%
Wind Speed SE 15 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 24 Sep 5:52 pm CDT
Extended Forecast for

Harlingen TX

  • Tonight

    Tonight: Mostly clear, with a low around 77. Southeast wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 91. Light and variable wind becoming northeast 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Partly cloudy, with a low around 74. East northeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. North wind 5 to 10 mph becoming east northeast in the afternoon.

    High: 92 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 72. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 91. Light east northeast wind increasing to 5 to 10 mph in the morning.

    High: 91 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. East northeast wind 5 to 9 mph becoming light east in the evening.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. East northeast wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 72. East northeast wind 5 to 9 mph becoming light east.

    Low: 72 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 91. Light and variable wind becoming northeast 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Partly cloudy, with a low around 74. East northeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. North wind 5 to 10 mph becoming east northeast in the afternoon.
Friday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 72. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 10%.
Saturday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 91. Light east northeast wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 71. East northeast wind 5 to 9 mph becoming light east in the evening.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. East northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 72. East northeast wind 5 to 9 mph becoming light east.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. East northeast wind 6 to 9 mph. Chance of precipitation is 40%.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. East wind 5 to 9 mph becoming light and variable.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 72.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Harlingen TX
 26.21°N 97.67°W
Last Update:
6:24 pm CDT Sep 24, 2025
Forecast Valid:
6pm CDT Sep 24, 2025-6pm CDT Oct 1, 2025
 
Forecast Discussion
 
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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