Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

35°F

2°C

Humidity 78%
Wind Speed Calm
Barometer 30.21 in (1023.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 9 Dec 7:56 am CST
Extended Forecast for

5 Miles SW San Marcos TX

Freeze Warning until December 9, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning until December 9, 09:00am

    NOW until 9:00am Tue

    Freeze Warning

  • Today

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 46. Southwest wind 5 to 10 mph.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southwest wind around 5 mph becoming north northeast in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. North wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. North wind around 5 mph becoming south in the afternoon.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. South southwest wind around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 76. South southwest wind 5 to 10 mph.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Southeast wind around 5 mph becoming northwest after midnight.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 67. Light west wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Clear, with a low around 46. Southwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 74. Southwest wind around 5 mph becoming north northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 44. North wind around 5 mph.
Thursday
Sunny, with a high near 70. North wind around 5 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 52. South southwest wind around 5 mph.
Friday
Partly sunny, with a high near 76. South southwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 58. Southeast wind around 5 mph becoming northwest after midnight.
Saturday
Partly sunny, with a high near 77. North wind 5 to 10 mph becoming south in the morning.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly cloudy, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
A 20 percent chance of showers. Mostly cloudy, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW San Marcos TX
 29.83°N 97.99°W (Elev. 676 ft)
6:42 am CST Dec 9, 2025
8am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database