Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

47°F

8°C

Humidity 80%
Wind Speed SW 5 mph
Barometer 29.98 in (1014.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 10 Dec 12:56 am CST
Extended Forecast for

2 Miles SSE Mountain City TX

  • Overnight

    Overnight: Clear, with a low around 45. Southwest wind around 10 mph.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Southwest wind 5 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 69. North wind around 5 mph becoming south southeast in the afternoon.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. South southwest wind around 5 mph.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 75. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 57. South wind around 5 mph becoming west after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 77. Northwest wind around 5 mph becoming south southeast in the afternoon.

    High: 77 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. South southeast wind around 5 mph becoming north after midnight.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 45. Southwest wind around 10 mph.
Wednesday
Sunny, with a high near 71. Southwest wind 5 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Clear, with a low around 39. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 69. North wind around 5 mph becoming south southeast in the afternoon.
Thursday Night
Mostly clear, with a low around 49. South southwest wind around 5 mph.
Friday
Mostly sunny, with a high near 75. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 57. South wind around 5 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 77. Northwest wind around 5 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 55. South southeast wind around 5 mph becoming north after midnight.
Sunday
Mostly cloudy, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Cloudy, with a high near 63.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Mountain City TX
 30.02°N 97.89°W (Elev. 797 ft)
1:28 am CST Dec 10, 2025
1am CST Dec 10, 2025-6pm CST Dec 16, 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