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

34°C

93°F

Humidity 56%
Wind Speed SE 15 km/h
Barometer 1013.2 mb (29.94 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index41°C (105°F)
Last update 7 Jun 1:56 pm CDT
Extended Forecast for

San Marcos TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 36. Heat index values as high as 39. East southeast wind 10 to 15 km/h.

    High: 36 °C

    Sunny

  • Tonight

    Tonight: Clear, with a low around 22. Southeast wind 5 to 15 km/h becoming southwest after midnight.

    Low: 22 °C

    Clear

  • Saturday

    Saturday: Sunny, with a high near 36. Heat index values as high as 39. South southeast wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon. Winds could gust as high as 35 km/h.

    High: 36 °C

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 23. Southeast wind 10 to 20 km/h, with gusts as high as 35 km/h.

    Low: 23 °C

    Increasing
    Clouds

  • Sunday

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

    High: 36 °C

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. South southeast wind 10 to 15 km/h.

    Low: 24 °C

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 35. South southeast wind 5 to 10 km/h.

    High: 35 °C

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 22. East wind 10 to 15 km/h.

    Low: 22 °C

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. East northeast wind 10 to 15 km/h becoming south southeast in the morning.

    High: 34 °C

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 36. Heat index values as high as 39. East southeast wind 10 to 15 km/h.
Tonight
Clear, with a low around 22. Southeast wind 5 to 15 km/h becoming southwest after midnight.
Saturday
Sunny, with a high near 36. Heat index values as high as 39. South southeast wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon. Winds could gust as high as 35 km/h.
Saturday Night
Increasing clouds, with a low around 23. Southeast wind 10 to 20 km/h, with gusts as high as 35 km/h.
Sunday
Mostly sunny, with a high near 36. South southeast wind 10 to 15 km/h.
Sunday Night
Partly cloudy, with a low around 24. South southeast wind 10 to 15 km/h.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 35. South southeast wind 5 to 10 km/h.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 22. East wind 10 to 15 km/h.
Tuesday
Mostly sunny, with a high near 34. East northeast wind 10 to 15 km/h becoming south southeast in the morning.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly clear, with a low around 23.
Thursday
Sunny, with a high near 36.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
San Marcos TX
 29.88°N 97.91°W (Elev. 597 m)
Last Update:
1:52 pm CDT Jun 7, 2024
Forecast Valid:
2pm CDT Jun 7, 2024-6pm CDT Jun 13, 2024
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation