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

60°F

16°C

Humidity 67%
Wind Speed W 3 mph
Barometer 29.99 in (1014.8 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 28 Feb 1:56 am CST
Extended Forecast for

Lockhart TX

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 59. South southeast wind 5 to 10 mph.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 87. South wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 87 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 65. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 55. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 59. South southeast wind 5 to 10 mph.
Sunday
Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 61. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 83. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 87. South wind 10 to 20 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 65. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 85.
Thursday Night
Mostly cloudy, with a low around 65.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
1:46 am CST Feb 28, 2026
Forecast Valid:
2am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
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