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 62%
Wind Speed SE 8 mph
Barometer 30.04 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 14 Aug 9:56 pm CDT
Extended Forecast for

3 Miles WSW Rio Medina TX

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 102. South southeast wind 5 to 10 mph.

    High: 98 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 97. Heat index values as high as 103. Southeast wind around 5 mph.

    High: 97 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 75. South southeast wind around 5 mph.

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 102. South southeast wind 5 to 10 mph.
Saturday Night
Increasing clouds, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 97. Heat index values as high as 103. Southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph.
Monday
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Clear, with a low around 75. South southeast wind around 5 mph.
Tuesday
Sunny, with a high near 98. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 75. South southeast wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Clear, with a low around 75.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Clear, with a low around 75.
Friday
Sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Rio Medina TX
 29.4°N 98.92°W (Elev. 866 ft)
Last Update:
6:42 pm CDT Aug 14, 2026
Forecast Valid:
10pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

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Chance of Precipitation