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

57°F

14°C

Humidity 64%
Wind Speed N 16 G 24 mph
Barometer 30.23 in (1023.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 5 Apr 4:56 am CDT
Extended Forecast for

2 Miles SSW Lockhart TX

  • Today

    Today: Mostly cloudy, with a high near 69. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 69 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 50. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Cloudy then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Northeast wind around 10 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. Northeast wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 72. North northeast wind around 5 mph becoming east in the afternoon.

    High: 72 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm after midnight.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Calm wind becoming east southeast around 5 mph in the morning.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 58. Southeast wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Light east southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 82 °F

    Cloudy then
    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 69. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 50. North wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Northeast wind around 10 mph.
Monday Night
Partly cloudy, with a low around 46. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 72. North northeast wind around 5 mph becoming east in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 76. Calm wind becoming east southeast around 5 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 58. Southeast wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Light east southeast wind becoming southeast 5 to 10 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lockhart TX
 29.86°N 97.7°W (Elev. 545 ft)
Last Update:
5:32 am CDT Apr 5, 2026
Forecast Valid:
5am CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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