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.

Partly Cloudy

88°F

31°C

Humidity 54%
Wind Speed E 15 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 3 Oct 3:52 pm CDT
Extended Forecast for

Port Mansfield TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 77. East northeast wind 8 to 13 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm. Mostly sunny, with a high near 84. Northeast wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers between 7pm and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 76. East northeast wind 6 to 11 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Sunny, with a high near 86. North wind 6 to 11 mph becoming east northeast in the afternoon. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. East wind 6 to 10 mph becoming south southeast after midnight.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then a slight chance of showers after 1pm. Sunny, with a high near 86. South southeast wind 5 to 11 mph becoming east in the afternoon. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. East southeast wind 6 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. East northeast wind 6 to 14 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northeast wind around 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 77. East northeast wind 8 to 13 mph.
Saturday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm. Mostly sunny, with a high near 84. Northeast wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers between 7pm and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 76. East northeast wind 6 to 11 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 86. North wind 6 to 11 mph becoming east northeast in the afternoon. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 77. East wind 6 to 10 mph becoming south southeast after midnight.
Monday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then a slight chance of showers after 1pm. Sunny, with a high near 86. South southeast wind 5 to 11 mph becoming east in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 78. East southeast wind 6 to 10 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. East northeast wind 6 to 14 mph. Chance of precipitation is 30%.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. East wind 8 to 11 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northeast wind 10 to 15 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 77.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Mansfield TX
 26.56°N 97.43°W
Last Update:
4:30 pm CDT Oct 3, 2025
Forecast Valid:
4pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation