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.

Partly Cloudy

70°F

21°C

Humidity 93%
Wind Speed SE 5 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 12 Oct 1:56 am CDT
Extended Forecast for

2 Miles ENE Kyle TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 69. Southeast wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Heat index values as high as 100. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 94. Heat index values as high as 103. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 74. South southeast wind around 10 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Partly Cloudy

  • Thursday

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

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Light and variable wind becoming north 5 to 10 mph after midnight.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 69. Southeast wind around 5 mph.
Columbus Day
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Heat index values as high as 100. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 94. Heat index values as high as 103. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 74. South southeast wind around 10 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 69. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 90. South southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 65. Light and variable wind becoming north 5 to 10 mph after midnight.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Kyle TX
 30°N 97.84°W (Elev. 646 ft)
Last Update:
1:24 am CDT Oct 12, 2026
Forecast Valid:
2am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation