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.

Fair

77°F

25°C

Humidity 40%
Wind Speed NE 3 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 29 Sep 10:56 pm CDT
Extended Forecast for

2 Miles W San Marcos TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. Northwest wind around 5 mph becoming northeast in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63. Northeast wind around 5 mph becoming calm.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind becoming southwest around 5 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. East wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 64. Calm wind.
Tuesday
Sunny, with a high near 93. Northwest wind around 5 mph becoming northeast in the afternoon.
Tuesday Night
Clear, with a low around 63. Northeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 94. Calm wind becoming southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 65. Calm wind.
Thursday
Sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.
Thursday Night
Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 93. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 67. East wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W San Marcos TX
 29.88°N 97.97°W (Elev. 699 ft)
Last Update:
11:42 pm CDT Sep 29, 2025
Forecast Valid:
11pm CDT Sep 29, 2025-6pm CDT Oct 6, 2025
 
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Additional Resources

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Chance of Precipitation