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

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

A Few Clouds with Haze

35°C

95°F

Humidity 53%
Wind Speed S 9 km/h
Barometer 1004.7 mb (29.73 in)
Dewpoint 24°C (75°F)
Visibility 10 km
Heat Index42°C (107°F)
Last update 26 May 4:51 pm CDT
Extended Forecast for

Castle Hills TX

Excessive Heat Warning until May 27, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until May 27, 08:00pm

    NOW until 8:00pm Mon

    Excessive Heat Warning

  • This Afternoon

    High: 37 °C

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 24. South southeast wind 5 to 10 km/h.

    Low: 24 °C

    Increasing
    Clouds

  • Memorial Day

    Memorial Day: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 39. Heat index values as high as 45. East southeast wind 5 to 10 km/h.

    High: 39 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 24. Southeast wind 10 to 15 km/h.

    Low: 24 °C

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 36. Southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.

    High: 36 °C

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 23. East southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.

    Low: 23 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 34. Southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.

    High: 34 °C

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 24. East southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.

    Low: 24 °C

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 37. Heat index values as high as 43. South wind around 10 km/h.
Tonight
Increasing clouds, with a low around 24. South southeast wind 5 to 10 km/h.
Memorial Day
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 39. Heat index values as high as 45. East southeast wind 5 to 10 km/h.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 24. Southeast wind 10 to 15 km/h.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 36. Southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 23. East southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 34. Southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 24. East southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.
Thursday
Partly sunny, with a high near 34. Southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 24.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 35.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 25.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 35.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 24.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 35.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.53°W (Elev. 846 m)
Last Update:
2:44 pm CDT May 26, 2024
Forecast Valid:
5pm CDT May 26, 2024-6pm CDT Jun 2, 2024
 
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