Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

67°F

19°C

Humidity 93%
Wind Speed S 8 mph
Barometer 30.21 in (1021.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 25 Dec 12:51 am CST
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Patchy fog.  Otherwise, increasing clouds, with a low around 64. South wind around 5 mph becoming calm.

    Low: 64 °F

    Patchy Fog

  • Christmas Day

    Christmas Day: Widespread fog, mainly before 9am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming south around 5 mph in the morning.

    High: 79 °F

    Fog then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 66. South southeast wind around 5 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 81. South southwest wind around 5 mph.

    High: 81 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. South wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Partly Sunny

  • Saturday Night

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

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 79. South wind 5 to 10 mph becoming east in the afternoon.

    High: 79 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 45. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

    Low: 45 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, increasing clouds, with a low around 64. South wind around 5 mph becoming calm.
Christmas Day
Widespread fog, mainly before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming south around 5 mph in the morning.
Thursday Night
Increasing clouds, with a low around 66. South southeast wind around 5 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 81. South southwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 66. South wind around 5 mph.
Saturday
Partly sunny, with a high near 80. South wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 66. South wind 5 to 10 mph.
Sunday
Mostly cloudy, with a high near 79. South wind 5 to 10 mph becoming east in the afternoon.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 45. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.
Monday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 52.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
12:46 am CST Dec 25, 2025
1am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database