Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Partly Cloudy

80°F

27°C

Humidity 56%
Wind Speed SW 10 mph
Barometer 29.94 in (1013.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 29 Nov 3:56 pm CST
Extended Forecast for

Mountain City TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 76. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 3am.  Increasing clouds, with a low around 41. Southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 35 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: Cloudy, with a high near 47. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 47 °F

    Cloudy

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 9pm.  Cloudy, with a low around 39. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.

    Low: 39 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers.  Cloudy, with a high near 48. North northeast wind 5 to 10 mph.

    High: 48 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. North northeast wind 5 to 10 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. East wind around 5 mph becoming calm  in the evening.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64. South wind 5 to 10 mph.

    High: 64 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 3am. Increasing clouds, with a low around 41. Southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Cloudy, with a high near 47. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Cloudy, with a low around 39. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday
A 40 percent chance of showers. Cloudy, with a high near 48. North northeast wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 37. North northeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 58. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 36. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 64. South wind 5 to 10 mph.
Wednesday Night
A 40 percent chance of showers. Cloudy, with a low around 48.
Thursday
A 50 percent chance of showers. Cloudy, with a high near 58.
Thursday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 44.
Friday
A 20 percent chance of showers. Mostly cloudy, with a high near 63.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountain City TX
 30.02°N 97.89°W (Elev. 797 ft)
4:32 pm CST Nov 29, 2025
4pm CST Nov 29, 2025-6pm CST Dec 6, 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