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

74°F

23°C

Humidity 46%
Wind Speed N 14 mph
Barometer 30.28 in (1025.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Oct 12:52 pm CDT
Extended Forecast for

San Perlita TX

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 78. North wind around 10 mph.

    High: 78 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. North northeast wind 5 to 7 mph becoming calm.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers after 5pm. Partly sunny, with a high near 82. North northeast wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 7pm. Mostly cloudy, with a low around 68. North northeast wind 5 to 7 mph becoming calm.

    Low: 68 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Northeast wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. Northeast wind 5 to 9 mph becoming light.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 84. East northeast wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. East northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Light north northeast wind becoming east 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 78. North wind around 10 mph.
Tonight
Mostly cloudy, with a low around 65. North northeast wind 5 to 7 mph becoming calm.
Monday
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 82. North northeast wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
A 30 percent chance of showers before 7pm. Mostly cloudy, with a low around 68. North northeast wind 5 to 7 mph becoming calm.
Tuesday
Mostly sunny, with a high near 84. Northeast wind 6 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 69. Northeast wind 5 to 9 mph becoming light.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 84. East northeast wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 68. East northeast wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85. Light north northeast wind becoming east 5 to 10 mph in the morning.
Thursday Night
Clear, with a low around 66. East wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 85. Light east northeast wind becoming east 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Perlita TX
 26.51°N 97.63°W
Last Update:
1:15 pm CDT Oct 18, 2026
Forecast Valid:
1pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation