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

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

A Few Clouds

94°F

34°C

Humidity 23%
Wind Speed NE 12 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 30 Sep 2:56 pm CDT
Extended Forecast for

Lockhart TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 95. North northeast wind around 5 mph.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming west northwest around 5 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. East northeast wind around 5 mph becoming calm.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Light and variable wind becoming east 5 to 10 mph in the morning.

    High: 93 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 95. North northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. Calm wind becoming west northwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 63. East northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 95. Calm wind becoming east southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 93. Light and variable wind becoming east 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 68.
Monday
A 20 percent chance of showers. Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
1:44 pm CDT Sep 30, 2025
Forecast Valid:
3pm CDT Sep 30, 2025-6pm CDT Oct 6, 2025
 
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