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.

Overcast

71°F

22°C

Humidity 79%
Wind Speed S 14 mph
Barometer 30.05 in (1016.9 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 25 Mar 11:56 pm CDT
Extended Forecast for

2 Miles SSW Lockhart TX

  • Overnight

    Overnight: Increasing clouds, with a low around 63. South wind around 10 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 61. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 90. South wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 90 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. North northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 81. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. East northeast wind 5 to 10 mph becoming southeast after midnight.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Increasing clouds, with a low around 63. South wind around 10 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Increasing clouds, with a low around 61. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 90. South wind 5 to 10 mph becoming east southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 59. North northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 81. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 54. East northeast wind 5 to 10 mph becoming southeast after midnight.
Sunday
Mostly sunny, with a high near 86. Light south southeast wind becoming south 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 57. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Partly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 91.
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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:
11:32 pm CDT Mar 25, 2026
Forecast Valid:
12am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
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