Coastal Threats for the East and Gulf; Record Warmth for the Central U.S.

Persistent onshore flow across the Southeast and portions of the mid-Atlantic will keep the risk of rip currents through the weekend. Rainfall could be locally heavy across Florida, especially along the eastern shoreline. Meanwhile, record warmth for portions of the Plains and Midwest with elevated fire concerns. For the west, a trough will keep the pattern unsettled with wet conditions. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

A Few Clouds

95°F

35°C

Humidity 30%
Wind Speed E 12 G 17 mph
Barometer 30.04 in (1016.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 3 Oct 2:56 pm CDT
Extended Forecast for

5 Miles SW San Marcos TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Sunny, with a high near 94. East wind around 5 mph.

    High: 94 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm.  Mostly clear, with a low around 67. East wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 67 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. North wind 5 to 10 mph becoming east in the afternoon.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. East southeast wind 5 to 10 mph becoming light east  after midnight.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 92. East wind 5 to 10 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. East southeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 91. East wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69. East wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 90. East northeast wind 5 to 10 mph.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Sunny, with a high near 94. East wind around 5 mph.
Tonight
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 67. East wind 5 to 10 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 92. North wind 5 to 10 mph becoming east in the afternoon.
Saturday Night
Mostly clear, with a low around 67. East southeast wind 5 to 10 mph becoming light east after midnight.
Sunday
Sunny, with a high near 92. East wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 70. East southeast wind around 5 mph.
Monday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 91. East wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 69. East wind around 5 mph.
Tuesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 90. East northeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW San Marcos TX
 29.83°N 97.99°W (Elev. 676 ft)
2:50 pm CDT Oct 3, 2025
3pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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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