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

Castroville Municipal Airport (KCVB)

Lat: 29.34°NLon: 98.85°WElev: 771ft.

Fair

52°F

11°C

Humidity 35%
Wind Speed N 6 mph
Barometer 30.23 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 30 Jan 1:15 am CST
Extended Forecast for

7 Miles SSW Helotes TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. North wind around 15 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 58. North wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 58 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. North northeast wind 5 to 10 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 49. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 24. East northeast wind around 5 mph becoming calm after midnight.

    Low: 24 °F

    Clear

  • Sunday

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

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. South wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52. South southeast wind around 5 mph.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. North wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly cloudy, with a high near 58. North wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 32. North northeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 49. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 24. East northeast wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 36. South wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 63. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 52. South southeast wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 70.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Mostly cloudy, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Helotes TX
 29.48°N 98.74°W (Elev. 997 ft)
Last Update:
12:46 am CST Jan 30, 2026
Forecast Valid:
1am 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