Severe Thunderstorms Forecast for Portions of the Plains, Mississippi Valley, and Mid South

Intense and widespread severe thunderstorms are expected Friday afternoon into the overnight hours across parts of the middle Mississippi Valley and Mid-South vicinity, eastward to the lower Ohio and Tennessee Valleys. Strong and damaging wind gusts are forecast along with several strong tornadoes. Farther north, heavy snow and blizzard conditions are possible over the Upper Midwest. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

75°F

24°C

Humidity 88%
Wind Speed S 15 mph
Barometer 29.90 in (1011.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 30 Mar 3:56 pm CDT
Extended Forecast for

San Marcos TX

  • This
    Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 79. South wind around 20 mph, with gusts as high as 30 mph.

    Chance
    Showers

    High: 79 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Cloudy, with a low around 68. South southeast wind 15 to 20 mph, with gusts as high as 25 mph.

    Chance
    Showers then
    Cloudy

    Low: 68 °F

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 89. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Gradual
    Clearing

    High: 89 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 53. West northwest wind 5 to 10 mph becoming north after midnight.

    Partly Cloudy

    Low: 53 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 84. North northwest wind 5 to 10 mph becoming east northeast in the afternoon.

    Mostly Sunny

    High: 84 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 59. East wind 5 to 10 mph.

    Mostly Cloudy

    Low: 59 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 87. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    High: 87 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Mostly Cloudy

    Low: 67 °F

  • Monday

    Monday: Partly sunny, with a high near 94. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Partly Sunny

    High: 94 °F

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. South wind around 20 mph, with gusts as high as 30 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Cloudy, with a low around 68. South southeast wind 15 to 20 mph, with gusts as high as 25 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 89. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 53. West northwest wind 5 to 10 mph becoming north after midnight.
Saturday
Mostly sunny, with a high near 84. North northwest wind 5 to 10 mph becoming east northeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 59. East wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 94. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 70.
Tuesday
Mostly cloudy, with a high near 94.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms. Cloudy, with a high near 71.
Click Map For Forecast
Point Forecast:
San Marcos TX
 29.88°N 97.94°W (Elev. 577 ft)
2:08 pm CDT Mar 30, 2023
4pm CDT Mar 30, 2023-6pm CDT Apr 6, 2023
 
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Additional Resources

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