Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

A Few Clouds

96°F

36°C

Humidity 37%
Wind Speed S 15 G 23 mph
Barometer 30.00 in (1014.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 9 Jul 4:56 pm CDT
Extended Forecast for

2 Miles WSW San Marcos TX

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm.  Mostly sunny, with a high near 93. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 93. Heat index values as high as 101. South southeast wind 5 to 10 mph.  Chance of precipitation is 50%.

    High: 93 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 93 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers.  Mostly cloudy, with a low around 76. Southeast wind 5 to 10 mph.  Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 93 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm  after midnight.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 93. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. South southeast wind 5 to 10 mph. Chance of precipitation is 50%.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 76. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm after midnight.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Wednesday Night
Mostly cloudy, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW San Marcos TX
 29.86°N 97.97°W (Elev. 646 ft)
5:32 pm CDT Jul 9, 2026
5pm CDT Jul 9, 2026-6pm CDT Jul 16, 2026
 
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Additional Resources

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