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.

Fog

63°F

17°C

Humidity 97%
Wind Speed NW 5 mph
Barometer 29.98 in (1013.7 mb)
Dewpoint 62°F (17°C)
Visibility 0.25 mi
Last update 9 Mar 6:51 am CDT
Extended Forecast for

Castle Hills TX

Dense Fog Advisory until March 9, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until March 9, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Today

    High: 81 °F

    Patchy
    Drizzle and
    Areas Dense
    Fog then
    Patchy Fog

  • Tonight

    Tonight: Cloudy, with a low around 68. South southeast wind 5 to 10 mph.

    Low: 68 °F

    Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Cloudy, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 64. Southeast wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 64 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Clear, with a low around 50. North wind around 15 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 71. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48. East wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Clear

Detailed Forecast

Today
Patchy drizzle before 10am. Areas of dense fog before 1pm. Otherwise, mostly cloudy, with a high near 81. Light south wind increasing to 5 to 10 mph in the afternoon.
Tonight
Cloudy, with a low around 68. South southeast wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Cloudy, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 64. Southeast wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Clear, with a low around 50. North wind around 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 71. North wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 48. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 81. South southwest wind 5 to 10 mph.
Friday Night
Clear, with a low around 54.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.51°W (Elev. 869 ft)
Last Update:
6:44 am CDT Mar 9, 2026
Forecast Valid:
7am CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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