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 3 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 5 Sep 4:52 am CDT
Extended Forecast for

Sebastian TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Mostly sunny and hot, with a high near 102. Heat index values as high as 112. Southeast wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 102 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 77. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 77 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms between 2pm and 4pm.  Mostly sunny and hot, with a high near 100. Heat index values as high as 111. Southeast wind 5 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    High: 100 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. East southeast wind 6 to 11 mph becoming light south southeast  after midnight. Winds could gust as high as 22 mph.

    Low: 77 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 100. Light east southeast wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 99. Light southeast wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. East southeast wind 9 to 14 mph becoming light southeast  after midnight. Winds could gust as high as 24 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 97. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 97 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 102. Heat index values as high as 112. Southeast wind 5 to 14 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 77. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Sunday
A chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 111. Southeast wind 5 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 77. East southeast wind 6 to 11 mph becoming light south southeast after midnight. Winds could gust as high as 22 mph.
Labor Day
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Light east southeast wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 76. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Light southeast wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 76. East southeast wind 9 to 14 mph becoming light southeast after midnight. Winds could gust as high as 24 mph.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 97. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 21 mph.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98. Calm wind becoming east southeast 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
Sebastian TX
 26.35°N 97.8°W
5:45 am CDT Sep 5, 2026
5am CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
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Additional Resources

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