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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Overcast

67°F

19°C

Humidity 97%
Wind Speed SE 6 mph
Barometer 30.22 in (1022.4 mb)
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Last update 24 Dec 1:53 am CST
Extended Forecast for

3 Miles SSE San Antonio TX

Dense Fog Advisory December 24, 03:00am until December 24, 09:00am
Click here for hazard details and duration
Dense Fog Advisory

  • Overnight

    Overnight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 66. South southeast wind around 5 mph.

    Low: 66 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. South southeast wind around 5 mph.

    High: 79 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Cloudy through mid morning, then gradual clearing, with a high near 79. South wind around 5 mph.

    High: 79 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 81. South southwest wind around 5 mph.

    High: 81 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 82. South wind 5 to 10 mph.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. South southeast wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 66. South southeast wind around 5 mph.
Wednesday
Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. South southeast wind around 5 mph.
Wednesday Night
Increasing clouds, with a low around 65. Southeast wind around 5 mph.
Christmas Day
Cloudy through mid morning, then gradual clearing, with a high near 79. South wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 64. South wind around 5 mph.
Friday
Partly sunny, with a high near 81. South southwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 65. South wind around 5 mph.
Saturday
Partly sunny, with a high near 82. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 66. South southeast wind 5 to 10 mph.
Sunday
Mostly cloudy, with a high near 78.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly cloudy, with a high near 52.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE San Antonio TX
 29.44°N 98.48°W (Elev. 663 ft)
Last Update:
2:32 am CST Dec 24, 2025
Forecast Valid:
2am CST Dec 24, 2025-6pm CST Dec 30, 2025
 
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