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

87°F

31°C

Humidity 40%
Wind Speed Vrbl 3 mph
Barometer 30.00 in (1015.3 mb)
Dewpoint 60°F (16°C)
Visibility 9.00 mi
Heat Index87°F (31°C)
Last update 4 Oct 12:56 pm CDT
Extended Forecast for

2 Miles W San Marcos Municipal Airport TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. East wind around 5 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. East wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Mostly Clear

  • Sunday

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

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. East wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. East wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 70. East northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 93. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 93. East wind around 5 mph.
Tonight
Mostly clear, with a low around 66. East wind around 5 mph becoming calm 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 69. East wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 69. East wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W San Marcos Municipal Airport TX
 29.9°N 97.91°W (Elev. 640 ft)
1:52 pm CDT Oct 4, 2025
1pm CDT Oct 4, 2025-6pm CDT Oct 10, 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