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

Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Overcast

48°F

9°C

Humidity 41%
Wind Speed N 13 mph
Barometer 30.38 in (1027.8 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 30 Jan 9:51 am CST
Extended Forecast for

Castle Hills TX

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 58. North wind 5 to 15 mph.

    High: 58 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 33. Light north northeast wind increasing to 5 to 10 mph after midnight.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 25. East northeast wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. South wind around 5 mph becoming calm.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.

    High: 64 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54. South wind around 5 mph.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 70. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 70 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 58. North wind 5 to 15 mph.
Tonight
Mostly clear, with a low around 33. Light north northeast wind increasing to 5 to 10 mph after midnight.
Saturday
Sunny, with a high near 48. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 25. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 55. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 38. South wind around 5 mph becoming calm.
Monday
Partly sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 54. South wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 70. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 50.
Wednesday
Mostly cloudy, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.5°N 98.53°W (Elev. 810 ft)
Last Update:
9:46 am CST Jan 30, 2026
Forecast Valid:
10am CST Jan 30, 2026-6pm CST Feb 5, 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