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

86°F

30°C

Humidity 55%
Wind Speed SE 6 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 1 Sep 11:35 pm CDT
Extended Forecast for

Castroville TX

  • Tonight

    Tonight: Mostly clear, with a low around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

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

    High: 101 °F

    Hot

  • Wednesday Night

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

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 100. Heat index values as high as 103. Southeast wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • 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. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 76. Southeast wind around 5 mph.
Wednesday
Sunny and hot, with a high near 101. Southeast wind around 5 mph becoming south southwest in the morning.
Wednesday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Thursday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 100. Heat index values as high as 103. Southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 20 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. Southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 98.
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
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:
11:32 pm CDT Sep 1, 2026
Forecast Valid:
11pm CDT Sep 1, 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