National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Rain Fog/Mist

71°F

22°C

Humidity 90%
Wind Speed SE 14 mph
Barometer 30.07 in (1016.5 mb)
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 12 Apr 1:51 am CDT
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 68. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Some of the storms could be severe. Cloudy, with a high near 79. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Cloudy, with a low around 69. South southeast wind 5 to 10 mph.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. South wind 5 to 10 mph.

    High: 83 °F

    Cloudy then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 68. South southeast wind around 10 mph.

    Low: 68 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 83. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind around 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Cloudy then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 68. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Some of the storms could be severe. Cloudy, with a high near 79. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Cloudy, with a low around 69. South southeast wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. South wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 68. South southeast wind around 10 mph.
Tuesday
Mostly cloudy, with a high near 83. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Mostly cloudy, with a high near 88.
Friday Night
Mostly cloudy, with a low around 70.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.51°W (Elev. 869 ft)
Last Update:
1:44 am CDT Apr 12, 2026
Forecast Valid:
2am CDT Apr 12, 2026-6pm CDT Apr 18, 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