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

95°F

35°C

Humidity 27%
Wind Speed Vrbl 5 mph
Barometer 29.96 in (1013.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 1 Oct 4:56 pm CDT
Extended Forecast for

2 Miles E San Marcos TX

  • Tonight

    Tonight: Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Calm wind becoming east around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

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

    Low: 67 °F

    Mostly Clear

  • Friday

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

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. East wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Calm wind becoming east around 5 mph in the morning.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. East southeast wind around 5 mph becoming calm after midnight.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Calm wind becoming east around 5 mph in the morning.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. East southeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 95. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 67. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 66. East wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 92. Calm wind becoming east around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 66. East southeast wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 93. Calm wind becoming east around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 68. East southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E San Marcos TX
 29.88°N 97.91°W (Elev. 597 ft)
Last Update:
5:32 pm CDT Oct 1, 2025
Forecast Valid:
5pm CDT Oct 1, 2025-6pm CDT Oct 8, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation