Florence Departs U.S. But Rivers Will Rise Further In Carolinas; Heavy Rain Continues In Midwest

Heavy rain has come to an end across the Northeast U.S. as Florence moves into the Atlantic, but major-to-record river flooding will continue across the Carolinas for days to weeks as Florence's rainfall makes its way through area river systems. Meanwhile, a stationary front extending through the Midwest will be a focus for heavy rain with localized flash flooding across the Upper Midwest midweek. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in (1014.4 mb)
Dewpoint 70°F (21°C)
Visibility 0.75 mi
Last update 19 Sep 7:56 am CDT
Extended Forecast for

San Marcos TX

  • Today

    Today: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 93. South southwest wind 5 to 10 mph.

    Patchy Fog
    then Mostly
    Sunny

    High: 93 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

    Partly Cloudy

    Low: 74 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 8am.  Mostly cloudy, with a high near 89. South southeast wind 5 to 10 mph.

    Chance
    T-storms

    High: 89 °F

  • Thursday
    Night

    Thursday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

    Chance
    T-storms

    Low: 74 °F

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 8am.  Cloudy, with a high near 86. South southeast wind 5 to 10 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 86 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely.  Cloudy, with a low around 73. Southeast wind 5 to 10 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 73 °F

  • Saturday

    Saturday: Showers and thunderstorms likely.  Cloudy, with a high near 85. South wind 5 to 10 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 85 °F

  • Saturday
    Night

    Saturday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 72. South wind 5 to 10 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 72 °F

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 8am.  Mostly cloudy, with a high near 85. South wind around 5 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 85 °F

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 93. South southwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 89. South southeast wind 5 to 10 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Friday
Showers and thunderstorms likely, mainly after 8am. Cloudy, with a high near 86. South southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Cloudy, with a low around 73. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Cloudy, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. South wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, with a high near 85. South wind around 5 mph. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Click Map For Forecast
Point Forecast:
San Marcos TX
 29.88°N 97.94°W (Elev. 577 ft)
5:42 am CDT Sep 19, 2018
8am CDT Sep 19, 2018-6pm CDT Sep 25, 2018
 
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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