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 34%
Wind Speed N 20 mph
Barometer 30.34 in (1027.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 21 Feb 8:56 pm CST
Extended Forecast for

2 Miles SW Hays TX

  • Tonight

    Tonight: Clear, with a low around 38. North wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 63. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. North northeast wind around 5 mph.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 64. North northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. East southeast wind around 5 mph becoming south southwest after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 38. North wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 63. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 35. North northeast wind around 5 mph.
Monday
Sunny, with a high near 64. North northeast wind around 5 mph becoming east southeast in the afternoon.
Monday Night
Mostly clear, with a low around 37. East southeast wind around 5 mph becoming south southwest after midnight.
Tuesday
Sunny, with a high near 73. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 53. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 57. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Hays TX
 30.09°N 97.89°W (Elev. 801 ft)
Last Update:
5:44 pm CST Feb 21, 2026
Forecast Valid:
9pm CST Feb 21, 2026-6pm CST Feb 28, 2026
 
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