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.

Fair

83°F

28°C

Humidity 79%
Wind Speed SE 14 mph
Barometer 29.92 in (1012.9 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 28 Aug 8:52 pm CDT
Extended Forecast for

San Perlita TX

  • Tonight

    Tonight: Mostly clear, with a low around 76. South southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98. Heat index values as high as 109. South southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South southeast wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97. Heat index values as high as 107. South southeast wind 5 to 11 mph.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. East southeast wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Light south southeast wind becoming east 5 to 10 mph in the morning.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 75. East southeast wind 5 to 10 mph becoming light south southeast after midnight.

    Low: 75 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Labor Day

    Labor Day: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Light northeast wind becoming east 5 to 10 mph in the morning.

    High: 95 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. East wind 5 to 10 mph becoming light and variable in the evening.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 76. South southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 98. Heat index values as high as 109. South southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 76. South southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 97. Heat index values as high as 107. South southeast wind 5 to 11 mph.
Saturday Night
Mostly clear, with a low around 75. East southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Light south southeast wind becoming east 5 to 10 mph in the morning.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 75. East southeast wind 5 to 10 mph becoming light south southeast after midnight.
Labor Day
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Light northeast wind becoming east 5 to 10 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. East wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind becoming east northeast 5 to 8 mph in the morning.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 73. East wind 5 to 8 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
San Perlita TX
 26.51°N 97.65°W
Last Update:
9:45 pm CDT Aug 28, 2025
Forecast Valid:
9pm CDT Aug 28, 2025-6pm CDT Sep 4, 2025
 
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