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

Lingering Winter Weather in Interior New England; Snow Squalls Developing Downwind of the Lower Great Lakes

A wintry mix will continue in interior New England through tonight as a coastal storm quickly passes to the east. Heavy snow is expected in northern Maine, with a coating of ice expected for much of interior New England. Behind this storm system, lake effect snow and snow squalls will develop from the Ohio Valley to interior New England through Monday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

41°F

5°C

Humidity 47%
Wind Speed NW 8 mph
Barometer 30.48 in (1032.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 Jan 3:56 am CST
Extended Forecast for

5 Miles SW San Marcos TX

  • Today

    Today: Partly sunny, with a high near 63. North wind around 5 mph becoming calm.

    High: 63 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 47. East southeast wind around 5 mph becoming calm.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 61. Southwest wind around 5 mph.

    High: 61 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. West southwest wind around 5 mph.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. West wind 5 to 15 mph becoming north in the morning. Winds could gust as high as 25 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 38. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North wind 5 to 10 mph becoming south southeast in the afternoon.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 39. South southwest wind around 5 mph.

    Low: 39 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 67. Southwest wind 5 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 63. North wind around 5 mph becoming calm.
Tonight
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 47. East southeast wind around 5 mph becoming calm.
Tuesday
A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 61. Southwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 43. West southwest wind around 5 mph.
Wednesday
Sunny, with a high near 70. West wind 5 to 15 mph becoming north in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Clear, with a low around 38. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 61. North wind 5 to 10 mph becoming south southeast in the afternoon.
Thursday Night
Clear, with a low around 39. South southwest wind around 5 mph.
Friday
Sunny, with a high near 67. Southwest wind 5 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW San Marcos TX
 29.81°N 97.99°W (Elev. 653 ft)
Last Update:
3:42 am CST Jan 12, 2026
Forecast Valid:
4am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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