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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

70°F

21°C

Humidity 82%
Wind Speed S 15 mph
Barometer 29.78 in (1007.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 8 Jan 5:56 am CST
Extended Forecast for

5 Miles SW San Marcos TX

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 81. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. South southwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 77. North wind 5 to 10 mph.

    High: 77 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. North northwest wind 5 to 10 mph increasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 59. North wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60. Calm wind becoming south southeast around 5 mph.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 81. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 60. South southwest wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 77. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 44. North northwest wind 5 to 10 mph increasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Mostly sunny, with a high near 59. North wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 38. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 63. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 60. Calm wind becoming south southeast around 5 mph.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW San Marcos TX
 29.81°N 97.99°W (Elev. 653 ft)
Last Update:
5:44 am CST Jan 8, 2026
Forecast Valid:
6am CST Jan 8, 2026-6pm CST Jan 14, 2026
 
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Additional Resources

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Chance of Precipitation