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

82°F

28°C

Humidity 85%
Wind Speed S 14 G 21 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 18 May 11:52 pm CDT
Extended Forecast for

2 Miles NNW Harlingen, Rio Grande Valley International Airport TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 80. Breezy, with a south southeast wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 80 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 96. Heat index values as high as 109. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 96 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 4am and 5am. Mostly cloudy, with a low around 79. Southeast wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms between 8am and 9am. Partly sunny, with a high near 93. East wind 11 to 16 mph becoming south southeast in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 78. Southeast wind 9 to 15 mph, with gusts as high as 22 mph.

    Low: 78 °F

    Mostly Cloudy

  • Thursday

    Thursday: 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. Mostly cloudy, with a high near 91. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 91 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 7pm. Mostly cloudy, with a low around 76. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. South southeast wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 7 to 11 mph.

    Low: 76 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 80. Breezy, with a south southeast wind 13 to 18 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 96. Heat index values as high as 109. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
A slight chance of showers and thunderstorms between 4am and 5am. Mostly cloudy, with a low around 79. Southeast wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms between 8am and 9am. Partly sunny, with a high near 93. East wind 11 to 16 mph becoming south southeast in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 78. Southeast wind 9 to 15 mph, with gusts as high as 22 mph.
Thursday
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. Mostly cloudy, with a high near 91. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers, with thunderstorms also possible after 7pm. Mostly cloudy, with a low around 76. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. South southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 7 to 11 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 90. South southeast wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Memorial Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Harlingen, Rio Grande Valley International Airport TX
 26.26°N 97.67°W
Last Update:
12:21 am CDT May 19, 2026
Forecast Valid:
12am CDT May 19, 2026-6pm CDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation