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.

Fair

77°F

25°C

Humidity 71%
Wind Speed NE 5 mph
Barometer 29.95 in (1013.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 5 Oct 8:56 am CDT
Extended Forecast for

San Marcos Municipal Airport TX

  • Today

    Today: Sunny, with a high near 93. East wind 5 to 10 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. East wind around 5 mph becoming calm  after midnight.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 92. North wind around 5 mph becoming east in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. East wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Light east northeast wind becoming east 5 to 10 mph in the afternoon.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. East wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71. East northeast wind around 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 94. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 93. East wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 67. East wind around 5 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 92. North wind around 5 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 94. Light east northeast wind becoming east 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 94. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 71. East northeast wind around 5 mph.
Thursday
Sunny, with a high near 94. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
San Marcos Municipal Airport TX
 29.88°N 97.86°W (Elev. 600 ft)
6:44 am CDT Oct 5, 2025
9am CDT Oct 5, 2025-6pm CDT Oct 11, 2025
 
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Additional Resources

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