National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Showers and Cooler Temperatures in the East; Multi-Day Rain Event in the Southwest

A cold front in the East will bring showers and thunderstorms and much cooler temperatures from the Northeast into the Southeast. The Southwest, centered around New Mexico, will continue to see showers and thunderstorms, where there maybe isolated flash flooding. Tropical moisture will bring a multi-day period of thunderstorms and locally heavy rainfall across the Southwest beginning Thursday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Partly Cloudy

77°F

25°C

Humidity 64%
Wind Speed N 3 mph
Barometer 30.10 in (1018.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 7 Oct 11:56 pm CDT
Extended Forecast for

2 Miles W San Marcos Municipal Airport TX

  • Overnight

    Overnight: A 20 percent chance of showers before 4am. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 93. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. East northeast wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of showers before 4am. Partly cloudy, with a low around 70. Calm wind.
Wednesday
Mostly sunny, with a high near 93. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 93. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 64. East northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 91. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 62. South wind around 5 mph.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 65.
Columbus Day
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W San Marcos Municipal Airport TX
 29.9°N 97.91°W (Elev. 640 ft)
Last Update:
12:06 am CDT Oct 8, 2025
Forecast Valid:
12am CDT Oct 8, 2025-6pm CDT Oct 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation