National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Castroville Municipal Airport (KCVB)

Lat: 29.34°NLon: 98.85°WElev: 771ft.

Fair

77°F

25°C

Humidity 89%
Wind Speed N 7 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Aug 12:15 am CDT
Extended Forecast for

Castroville TX

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms before 1am. Cloudy early, then clearing, with a low around 76. East southeast wind around 5 mph becoming north northeast.

    Low: 76 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 105. Calm wind becoming east around 5 mph in the afternoon.

    High: 100 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Heat index values as high as 104. East northeast wind around 5 mph becoming southeast in the morning.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South southeast wind 5 to 10 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms before 1am. Cloudy early, then clearing, with a low around 76. East southeast wind around 5 mph becoming north northeast.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 105. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 99. Heat index values as high as 104. East northeast wind around 5 mph becoming southeast in the morning.
Saturday Night
Clear, with a low around 74. South southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.
Sunday Night
Clear, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castroville TX
 29.36°N 98.87°W (Elev. 787 ft)
Last Update:
11:32 pm CDT Aug 27, 2026
Forecast Valid:
12am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation