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.

Overcast and Breezy

70°F

21°C

Humidity 79%
Wind Speed S 22 G 28 mph
Barometer 29.81 in (1008.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Mar 11:56 pm CDT
Extended Forecast for

2 Miles SSW Lockhart TX

Wind Advisory March 15, 03:00pm until March 16, 05:00am
Red Flag Warning March 15, 12:00pm until March 16, 08:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning

  • Overnight

    Overnight: Cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Cloudy

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 94. South wind around 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 94 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph.

    Low: 40 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Mostly sunny, with a high near 59. North wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. North northeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 67. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. South wind 5 to 10 mph.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 20 mph.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 94. South wind around 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 40. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph.
Monday
Mostly sunny, with a high near 59. North wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 32. North northeast wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 67. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 43. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 51. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 90.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 92.
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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:
12:12 am CDT Mar 15, 2026
Forecast Valid:
12am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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