National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

72°F

22°C

Humidity 57%
Wind Speed N 8 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 8 Oct 8:56 am CDT
Extended Forecast for

6 Miles SSE Lockhart TX

  • Today

    Today: Sunny, with a high near 91. East northeast wind around 5 mph.

    High: 91 °F

    Sunny

  • Tonight

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

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91. Northeast wind 5 to 10 mph.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 90. North wind around 5 mph.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 65. East northeast wind around 5 mph becoming calm.

    Low: 65 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 92. Calm wind becoming south around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. Southeast wind around 5 mph becoming calm after midnight.

    Low: 69 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 92. Light southeast wind becoming south southeast 5 to 10 mph in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 91. East northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 91. Northeast wind 5 to 10 mph.
Friday Night
Clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 90. North wind around 5 mph.
Saturday Night
Clear, with a low around 65. East northeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 92. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 69. Southeast wind around 5 mph becoming calm after midnight.
Columbus Day
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 92. Light southeast wind becoming south southeast 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Lockhart TX
 29.79°N 97.65°W (Elev. 410 ft)
Last Update:
7:42 am CDT Oct 8, 2026
Forecast Valid:
9am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation