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

77°F

25°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 29.90 in (1012.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 31 Aug 1:52 am CDT
Extended Forecast for

Primera TX

  • Overnight

    Overnight: Mostly clear, with a low around 78. South southeast wind around 6 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 98. Heat index values as high as 107. Southeast wind 5 to 11 mph.

    High: 98 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. East southeast wind 8 to 13 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Labor Day

    Labor Day: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 97. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 50%.

    High: 97 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 4am. Mostly clear, with a low around 77. East wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 50%.

    Low: 77 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 10am, then showers likely and possibly a thunderstorm after 10am. Partly sunny, with a high near 94. North northwest wind 5 to 9 mph. Chance of precipitation is 70%.

    High: 94 °F

    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: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Light and variable wind becoming northeast 5 to 9 mph in the morning.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • 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

Detailed Forecast

Overnight
Mostly clear, with a low around 78. South southeast wind around 6 mph.
Sunday
Sunny, with a high near 98. Heat index values as high as 107. Southeast wind 5 to 11 mph.
Sunday Night
Mostly clear, with a low around 77. East southeast wind 8 to 13 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph.
Labor Day
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 97. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly clear, with a low around 77. East wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 10am, then showers likely and possibly a thunderstorm after 10am. Partly sunny, with a high near 94. North northwest wind 5 to 9 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
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Light and variable wind becoming 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 97. Calm wind becoming east 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 74. East wind 5 to 10 mph becoming light south southeast after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 76.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Primera TX
 26.23°N 97.75°W
Last Update:
2:30 am CDT Aug 31, 2025
Forecast Valid:
2am CDT Aug 31, 2025-6pm CDT Sep 6, 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