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.

Mostly Cloudy

81°F

27°C

Humidity 84%
Wind Speed SE 7 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 9.00 mi
Heat Index87°F (31°C)
Last update 15 Sep 3:15 am CDT
Extended Forecast for

Castroville TX

  • Overnight

    Overnight: Partly cloudy, with a low around 75. Southeast wind around 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny and hot, with a high near 101. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. East southeast wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

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

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. East wind 5 to 10 mph.

    High: 98 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 74. East southeast wind 5 to 10 mph.

    Low: 74 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 97. East southeast wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. East southeast wind 5 to 10 mph becoming light southeast after midnight.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 75. Southeast wind around 10 mph.
Tuesday
Partly sunny, then gradually becoming sunny and hot, with a high near 101. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny and hot, with a high near 100. East southeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. East wind 5 to 10 mph.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 74. East southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 97. East southeast wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 72. East southeast wind 5 to 10 mph becoming light southeast after midnight.
Saturday
Sunny, with a high near 98.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Mostly sunny, with a high near 98.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castroville TX
 29.34°N 98.84°W (Elev. 735 ft)
Last Update:
2:46 am CDT Sep 15, 2026
Forecast Valid:
3am CDT Sep 15, 2026-6pm CDT Sep 21, 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