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

85°F

29°C

Humidity 72%
Wind Speed E 12 mph
Barometer 29.89 in (1012.2 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 1 Sep 7:52 pm CDT
Extended Forecast for

Harlingen TX

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Mostly clear, with a low around 77. East wind 5 to 7 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 96. Calm wind becoming northeast 5 to 8 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 96 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 76. East northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 76 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Calm wind becoming east northeast 5 to 9 mph in the morning.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. East northeast wind 5 to 9 mph becoming calm 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 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 97. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 97 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 78. Southeast wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Mostly clear, with a low around 77. East wind 5 to 7 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 96. Calm wind becoming northeast 5 to 8 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 76. East northeast wind 5 to 8 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Calm wind becoming east northeast 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 74. East northeast wind 5 to 9 mph becoming calm 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 75. South southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 97. Light southeast wind increasing to 5 to 10 mph in the morning.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 78. Southeast wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 96. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. East southeast wind 6 to 11 mph.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 94. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Monday
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 97.7°W
Last Update:
8:45 pm CDT Sep 1, 2025
Forecast Valid:
8pm CDT Sep 1, 2025-6pm CDT Sep 8, 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