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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

A Few Clouds

58°F

14°C

Humidity 16%
Wind Speed Vrbl 6 mph
Barometer 30.43 in (1029.5 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 30 Dec 1:51 pm CST
Extended Forecast for

Castle Hills TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. Calm wind.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the morning.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. Southwest wind around 5 mph.

    Low: 43 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 72. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. South southwest wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 84. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53. West wind around 5 mph becoming north after midnight.

    Low: 53 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 77. North wind around 5 mph becoming east in the afternoon.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 59. Calm wind.
Tonight
Mostly clear, with a low around 35. Calm wind.
Wednesday
Sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 43. Southwest wind around 5 mph.
New Year's Day
Mostly sunny, with a high near 72. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 55. South southwest wind around 5 mph.
Friday
Sunny, with a high near 84. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 53. West wind around 5 mph becoming north after midnight.
Saturday
Sunny, with a high near 77. North wind around 5 mph becoming east in the afternoon.
Saturday Night
Clear, with a low around 51.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 78.
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 98.53°W (Elev. 846 ft)
Last Update:
12:44 pm CST Dec 30, 2025
Forecast Valid:
2pm CST Dec 30, 2025-6pm CST Jan 5, 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