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

80°F

27°C

Humidity 79%
Wind Speed S 6 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 29 Sep 12:56 am CDT
Extended Forecast for

Kyle TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. South southeast wind around 5 mph.

    Low: 72 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 94. Heat index values as high as 101. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 73. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. Heat index values as high as 105. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 95 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 7pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 73. South southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 89. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    High: 89 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 70. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.

    Low: 70 °F

    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then showers likely. High near 82. East wind around 5 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 67. North northeast wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. South southeast wind around 5 mph.
Tuesday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 94. Heat index values as high as 101. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 73. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. Heat index values as high as 105. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of thunderstorms before 7pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 73. South southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 89. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Thursday Night
Showers and possibly a thunderstorm. Low around 70. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm before 1pm, then showers likely. High near 82. East wind around 5 mph. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 67. North northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 29.99°N 97.89°W (Elev. 791 ft)
Last Update:
1:28 am CDT Sep 29, 2026
Forecast Valid:
1am CDT Sep 29, 2026-6pm CDT Oct 5, 2026
 
Forecast Discussion
 
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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