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

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 Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

66°F

19°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.26 in (1024.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 24 Dec 6:56 am CST
Extended Forecast for

5 Miles SSE Wimberley TX

  • Today

    Today: Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. South wind 5 to 10 mph.

    High: 77 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. South southwest wind around 5 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Cloudy through mid morning, then gradual clearing, with a high near 77. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 61. South wind 5 to 10 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. South wind 5 to 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80. South wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62. South wind 5 to 10 mph.

    Low: 62 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 75. South wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 75 °F

    Mostly Cloudy

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. South wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 61. South southwest wind around 5 mph.
Christmas Day
Cloudy through mid morning, then gradual clearing, with a high near 77. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 61. South wind 5 to 10 mph.
Friday
Partly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 62. South wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 80. South wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 62. South wind 5 to 10 mph.
Sunday
Mostly cloudy, with a high near 75. South wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
Mostly cloudy, with a high near 48.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
Last Update:
6:42 am CST Dec 24, 2025
Forecast Valid:
7am CST Dec 24, 2025-6pm CST Dec 30, 2025
 
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