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.

Overcast

79°F

26°C

Humidity 94%
Wind Speed N 14 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Oct 2:52 pm CDT
Extended Forecast for

Port Mansfield TX

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 83. North northeast wind around 16 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 74. North wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 74 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 83. North wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 83 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 73. North northeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    Low: 73 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 85. North wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly clear, with a low around 73. North northeast wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 86. North northeast wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Northeast wind 6 to 13 mph.

    Low: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. North northeast wind 10 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 83. North northeast wind around 16 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm. Low around 74. North wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
Showers and possibly a thunderstorm. High near 83. North wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 73. North northeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 85. North wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 73. North northeast wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 86. North northeast wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Northeast wind 6 to 13 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. North northeast wind 10 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. North northeast wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Breezy, with a north wind 10 to 18 mph, with gusts as high as 25 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Mansfield TX
 26.56°N 97.45°W
Last Update:
2:47 pm CDT Oct 4, 2026
Forecast Valid:
2pm CDT Oct 4, 2026-6pm CDT Oct 10, 2026
 
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