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.

Mostly Cloudy

28°C

83°F

Humidity 88%
Wind Speed S 11 km/h
Barometer 1014.5 mb (29.98 in)
Dewpoint 26°C (79°F)
Visibility 16 km
Heat Index34°C (94°F)
Last update 25 Jun 8:56 am CDT
Extended Forecast for

5 Miles SW San Marcos TX

Heat Advisory June 25, 01:00pm until June 25, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 35. Heat index values as high as 43. South southeast wind 10 to 15 km/h.

    High: 35 °C

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 24. South southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.

    Low: 24 °C

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 36. Heat index values as high as 42. South wind 10 to 15 km/h.

    High: 36 °C

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. South southeast wind 10 to 15 km/h.

    Low: 24 °C

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 36. South southeast wind 10 to 15 km/h.

    High: 36 °C

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. South southeast wind 10 to 15 km/h.

    Low: 24 °C

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 34. South wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.

    High: 34 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. South southeast wind 15 to 25 km/h, with gusts as high as 35 km/h.

    Low: 25 °C

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 35. South southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.

    High: 35 °C

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 35. Heat index values as high as 43. South southeast wind 10 to 15 km/h.
Tonight
Increasing clouds, with a low around 24. South southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 36. Heat index values as high as 42. South wind 10 to 15 km/h.
Wednesday Night
Mostly clear, with a low around 24. South southeast wind 10 to 15 km/h.
Thursday
Mostly sunny, with a high near 36. South southeast wind 10 to 15 km/h.
Thursday Night
Mostly clear, with a low around 24. South southeast wind 10 to 15 km/h.
Friday
Mostly sunny, with a high near 34. South wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.
Friday Night
Partly cloudy, with a low around 25. South southeast wind 15 to 25 km/h, with gusts as high as 35 km/h.
Saturday
Mostly sunny, with a high near 35. South southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 36.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW San Marcos TX
 29.83°N 97.99°W (Elev. 676 m)
Last Update:
2:48 am CDT Jun 25, 2024
Forecast Valid:
9am CDT Jun 25, 2024-6pm CDT Jul 1, 2024
 
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