Blizzard Conditions Are Forecast Across Parts of the Northern Plains and Upper Great Lakes

In the north-central U.S., a strong storm will continue to bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest tonight before moving across the Great Lakes with heavy lake effect snow Wednesday into Thanksgiving Day. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

57°F

14°C

Humidity 81%
Wind Speed N 9 mph
Barometer 30.25 in (1024.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 26 Nov 3:56 am CST
Extended Forecast for

2 Miles W San Marcos TX

  • Today

    Today: Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. North northeast wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 65. East northeast wind around 5 mph.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66. East northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 9pm.  Cloudy, with a low around 58. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 74. South wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.

    High: 74 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 45. South southwest wind 5 to 10 mph becoming north after midnight.

    Low: 45 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers.  Mostly cloudy, with a high near 57. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 57 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 44. North northeast wind around 5 mph.
Thanksgiving Day
Mostly sunny, with a high near 65. East northeast wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 47. East northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 66. East northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A chance of showers, with thunderstorms also possible after 9pm. Cloudy, with a low around 58. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 74. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 45. South southwest wind 5 to 10 mph becoming north after midnight.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 57. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 40 percent chance of showers. Cloudy, with a low around 40.
Monday
A 40 percent chance of showers. Cloudy, with a high near 52.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 37.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W San Marcos TX
 29.88°N 97.97°W (Elev. 699 ft)
3:42 am CST Nov 26, 2025
4am CST Nov 26, 2025-6pm CST Dec 2, 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