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

80°F

27°C

Humidity 87%
Wind Speed SE 7 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 31 Aug 10:52 pm CDT
Extended Forecast for

Harlingen TX

  • Tonight

    Tonight: Mostly clear, with a low around 77. East southeast wind around 6 mph becoming calm after midnight.

    Low: 77 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 97. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly clear, with a low around 77. East northeast 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. Increasing clouds, with a high near 95. Calm wind becoming north northeast 5 to 8 mph in the morning. Chance of precipitation is 70%.

    High: 95 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. East northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 75 °F

    Partly Cloudy

  • 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 75. East wind 5 to 9 mph becoming light and variable after midnight.

    Low: 75 °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

Detailed Forecast

Tonight
Mostly clear, with a low around 77. East southeast wind around 6 mph becoming calm after midnight.
Labor Day
A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 97. Calm wind becoming east 5 to 8 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly clear, with a low around 77. East northeast 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. Increasing clouds, with a high near 95. Calm wind becoming north northeast 5 to 8 mph in the morning. Chance of precipitation is 70%.
Tuesday Night
Partly cloudy, with a low around 75. East northeast wind 5 to 8 mph becoming calm in the evening.
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 75. 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. Southeast wind 6 to 11 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 76.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harlingen TX
 26.21°N 97.7°W
Last Update:
11:30 pm CDT Aug 31, 2025
Forecast Valid:
11pm CDT Aug 31, 2025-6pm CDT Sep 7, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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