Major Storm Pounding California; Winter Weather Threats Through This Weekend From the Central to Eastern U.S.

The last and strongest in a week-long parade of Pacific storms is pounding California with a variety of hazards, including heavy rainfall, mountain snow and flooding near recent wildfire burn scars. Meanwhile, a weak, progressive system may produce light snow from the Ohio Valley into the northern Mid-Atlantic region through early Friday. Then a major winter storm will develop for the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

68°F

20°C

Humidity 63%
Wind Speed S 6 mph
Barometer 30.17 in (1021.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Jan 12:56 pm CST
Extended Forecast for

San Marcos TX

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 74. West northwest wind around 5 mph becoming northeast.

    Sunny

    High: 74 °F

  • Tonight

    Tonight: Patchy fog after 3am.  Otherwise, increasing clouds, with a low around 52. East northeast wind around 5 mph becoming calm.

    Partly Cloudy
    then Patchy
    Fog

    Low: 52 °F

  • Friday

    Friday: A 20 percent chance of showers.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 72. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    Slight Chance
    Showers and
    Patchy Fog

    High: 72 °F

  • Friday
    Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 47. South southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Chance
    Showers

    Low: 47 °F

  • Saturday

    Saturday: Sunny, with a high near 54. Breezy, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph.

    Sunny and
    Breezy

    High: 54 °F

  • Saturday
    Night

    Saturday Night: Clear, with a low around 33. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Clear

    Low: 33 °F

  • Sunday

    Sunday: Sunny, with a high near 54. North northwest wind 5 to 10 mph becoming east in the afternoon.

    Sunny

    High: 54 °F

  • Sunday
    Night

    Sunday Night: Clear, with a low around 34. East wind around 5 mph becoming south after midnight.

    Clear

    Low: 34 °F

  • M.L.King
    Day

    M.L.King Day: Sunny, with a high near 63. South wind 5 to 10 mph increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    Sunny

    High: 63 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 74. West northwest wind around 5 mph becoming northeast.
Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 52. East northeast wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 72. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 47. South southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Saturday
Sunny, with a high near 54. Breezy, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Clear, with a low around 33. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 54. North northwest wind 5 to 10 mph becoming east in the afternoon.
Sunday Night
Clear, with a low around 34. East wind around 5 mph becoming south after midnight.
M.L.King Day
Sunny, with a high near 63. South wind 5 to 10 mph increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 37.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 55.
Click Map For Forecast
Point Forecast:
San Marcos TX
 29.88°N 97.94°W (Elev. 577 ft)
10:43 am CST Jan 17, 2019
1pm CST Jan 17, 2019-6pm CST Jan 23, 2019
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database