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.

Mostly Cloudy

75°F

24°C

Humidity 94%
Wind Speed N 14 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 5 Oct 3:52 am CDT
Extended Forecast for

Port Mansfield TX

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 77. North wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 77 °F

    Showers
    Likely

  • Monday

    Monday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 81. Breezy, with a north wind 17 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 81 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Low around 77. North wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 77 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. North wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 82 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 7pm. Mostly clear, with a low around 77. North northeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 83. North wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 77. Northeast wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 77 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 82. Northeast wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Northeast wind 9 to 15 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 77. North wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Monday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 81. Breezy, with a north wind 17 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Low around 77. North wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. North wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 7pm. Mostly clear, with a low around 77. North northeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 83. North wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 77. Northeast wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 82. Northeast wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Northeast wind 9 to 15 mph, with gusts as high as 23 mph.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. North wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 76. North northeast wind 11 to 15 mph, with gusts as high as 23 mph.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 75.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Mansfield TX
 26.56°N 97.43°W
Last Update:
4:18 am CDT Oct 5, 2026
Forecast Valid:
4am CDT Oct 5, 2026-6pm CDT Oct 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation