Heavy Rain Threat Along Central Gulf Coast and in the Pacific Northwest

Locally heavy rainfall and flash flooding remains likely along the central Gulf Coast into the weekend from southeast Louisiana to the Florida Panhandle. A strong cold front will bring heavy rain and some high elevation snow with the arrival of cooler temperatures to the Northwest through the weekend. Widespread elevated fire threat possible from the Great Basin into the northern/central Plains. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

81°F

27°C

Humidity 53%
Wind Speed E 6 mph
Barometer 29.88 in (1010.8 mb)
Dewpoint 62°F (17°C)
Visibility 9.00 mi
Heat Index82°F (28°C)
Last update 16 Sep 8:56 pm CDT
Extended Forecast for

5 Miles SW San Marcos TX

  • Tonight

    Tonight: Mostly clear, with a low around 69. East northeast wind around 5 mph becoming south after midnight.

    Mostly Clear

    Low: 69 °F

  • Friday

    Friday: Sunny, with a high near 97. Heat index values as high as 101. West wind 5 to 10 mph becoming east in the afternoon.

    Sunny

    High: 97 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 71. East northeast wind around 5 mph becoming south in the evening.

    Mostly Clear

    Low: 71 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 95. Light and variable wind becoming northeast 5 to 10 mph in the morning.

    Sunny then
    Slight Chance
    T-storms

    High: 95 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 72. East northeast wind 5 to 10 mph becoming light and variable  in the evening.

    Mostly Clear

    Low: 72 °F

  • Sunday

    Sunday: Sunny, with a high near 93. Calm wind becoming east northeast around 5 mph in the morning.

    Sunny

    High: 93 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 72. East southeast wind around 5 mph becoming south southwest after midnight.

    Mostly Clear

    Low: 72 °F

  • Monday

    Monday: Sunny, with a high near 95. South southwest wind 5 to 10 mph.

    Sunny

    High: 95 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 74. South southeast wind 5 to 10 mph.

    Mostly Clear

    Low: 74 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 69. East northeast wind around 5 mph becoming south after midnight.
Friday
Sunny, with a high near 97. Heat index values as high as 101. West wind 5 to 10 mph becoming east in the afternoon.
Friday Night
Mostly clear, with a low around 71. East northeast wind around 5 mph becoming south in the evening.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Light and variable wind becoming northeast 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 72. East northeast wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 93. Calm wind becoming east northeast around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 72. East southeast wind around 5 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 95. South southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 74. South southeast wind 5 to 10 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 89.
Click Map For Forecast
Point Forecast:
5 Miles SW San Marcos TX
 29.83°N 97.99°W (Elev. 676 ft)
5:32 pm CDT Sep 16, 2021
9pm CDT Sep 16, 2021-6pm CDT Sep 23, 2021
 
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Additional Resources

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Hourly Weather Forecast

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