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.

Mostly Cloudy

31°C

87°F

Humidity 65%
Wind Speed SE 31 G 41 km/h
Barometer 1007.6 mb (29.78 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index35°C (95°F)
Last update 17 Jun 7:56 pm CDT
Extended Forecast for

3 Miles WNW San Marcos TX

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 24. Southeast wind 20 to 25 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 40 km/h.

    Low: 24 °C

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 33. Southeast wind 10 to 15 km/h increasing to 15 to 20 km/h in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 20%.

    High: 33 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 23. East wind 10 to 20 km/h, with gusts as high as 40 km/h. Chance of precipitation is 20%.

    Low: 23 °C

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 26. Northeast wind 20 to 25 km/h, with gusts as high as 45 km/h. Chance of precipitation is 70%.

    High: 26 °C

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 23. East northeast wind 20 to 25 km/h, with gusts as high as 40 km/h. Chance of precipitation is 60%.

    Low: 23 °C

    Heavy Rain

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 28. East northeast wind 20 to 25 km/h, with gusts as high as 40 km/h. Chance of precipitation is 60%.

    High: 28 °C

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22. East wind 10 to 20 km/h, with gusts as high as 35 km/h.

    Low: 22 °C

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 31. East wind 10 to 15 km/h, with gusts as high as 30 km/h.

    High: 31 °C

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22. East southeast wind 5 to 15 km/h.

    Low: 22 °C

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 24. Southeast wind 20 to 25 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 40 km/h.
Tuesday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 33. Southeast wind 10 to 15 km/h increasing to 15 to 20 km/h in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 23. East wind 10 to 20 km/h, with gusts as high as 40 km/h. Chance of precipitation is 20%.
Juneteenth
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 26. Northeast wind 20 to 25 km/h, with gusts as high as 45 km/h. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 23. East northeast wind 20 to 25 km/h, with gusts as high as 40 km/h. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 28. East northeast wind 20 to 25 km/h, with gusts as high as 40 km/h. Chance of precipitation is 60%.
Thursday Night
Mostly cloudy, with a low around 22. East wind 10 to 20 km/h, with gusts as high as 35 km/h.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 31. East wind 10 to 15 km/h, with gusts as high as 30 km/h.
Friday Night
Partly cloudy, with a low around 22. East southeast wind 5 to 15 km/h.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
Mostly clear, with a low around 22.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 23.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 33.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW San Marcos TX
 29.9°N 97.97°W (Elev. 686 m)
Last Update:
7:42 pm CDT Jun 17, 2024
Forecast Valid:
8pm CDT Jun 17, 2024-6pm CDT Jun 24, 2024
 
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Additional Resources

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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