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.

Overcast with Haze

75°F

24°C

Humidity 78%
Wind Speed SE 8 mph
Barometer 29.87 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 7 Mar 1:55 am CST
Extended Forecast for

6 Miles WSW Helotes TX

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 3am. Cloudy, with a low around 68. South southeast wind around 10 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 80. Southeast wind around 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 56. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    T-storms
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 69. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 61. East northeast wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 67. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 82. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Southeast wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 3am. Cloudy, with a low around 68. South southeast wind around 10 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 80. Southeast wind around 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 56. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 69. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 61. East northeast wind around 5 mph becoming calm in the evening.
Monday
A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 50%.
Monday Night
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 67. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 82. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Southeast wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 71.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Helotes TX
 29.54°N 98.77°W (Elev. 1050 ft)
Last Update:
1:44 am CST Mar 7, 2026
Forecast Valid:
2am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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