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.

Overcast

86°F

30°C

Humidity 70%
Wind Speed S 14 mph
Barometer 30.02 in (1015.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 14 Oct 10:56 am CDT
Extended Forecast for

Kyle TX

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 68. South southeast wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 68 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 90. Southeast wind 5 to 10 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 75. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 75 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. North wind 15 to 20 mph, with gusts as high as 40 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. North northeast wind 5 to 10 mph becoming light north.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 76. North wind around 5 mph becoming calm in the afternoon.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 68. South southeast wind 5 to 15 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 90. Southeast wind 5 to 10 mph.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 75. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph.
Friday Night
Partly cloudy, with a low around 52. North wind 15 to 20 mph, with gusts as high as 40 mph.
Saturday
Mostly sunny, with a high near 71. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 50. North northeast wind 5 to 10 mph becoming light north.
Sunday
Mostly sunny, with a high near 76. North wind around 5 mph becoming calm in the afternoon.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 30°N 97.86°W (Elev. 699 ft)
Last Update:
11:32 am CDT Oct 14, 2026
Forecast Valid:
11am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation