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

79°F

26°C

Humidity 79%
Wind Speed E 3 mph
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 2 Sep 3:55 am CDT
Extended Forecast for

Castroville TX

  • Today

    Today: Sunny and hot, with a high near 101. Calm wind becoming south southwest around 5 mph in the morning.

    High: 101 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. Heat index values as high as 104. South southeast wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 98. Southeast wind 5 to 10 mph.

    High: 98 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 98. East southeast wind around 5 mph.

    High: 98 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. East southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 98. Southeast wind around 5 mph.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 101. Calm wind becoming south southwest around 5 mph in the morning.
Tonight
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Thursday
Mostly sunny and hot, with a high near 101. Heat index values as high as 104. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 98. Southeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 98. East southeast wind around 5 mph.
Saturday Night
Mostly clear, with a low around 74. East southeast wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 98. Southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 74.
Labor Day
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 98.
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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:
2:46 am CDT Sep 2, 2026
Forecast Valid:
4am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation