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.

A Few Clouds

67°F

19°C

Humidity 87%
Wind Speed N 12 mph
Barometer 30.03 in (1016.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 9 May 2:56 am CDT
Extended Forecast for

2 Miles E San Marcos TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. North wind around 5 mph.

    Low: 63 °F

    Mostly Cloudy

  • Friday

    Friday: Isolated showers after 1pm. Mostly sunny, with a high near 83. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Isolated
    Showers

  • Friday Night

    Friday Night: Isolated showers before 8pm. Mostly clear, with a low around 60. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Isolated
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Isolated showers after 1pm. Mostly sunny, with a high near 80. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Isolated
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. South wind around 5 mph.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. North wind around 5 mph.
Friday
Isolated showers after 1pm. Mostly sunny, with a high near 83. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Isolated showers before 8pm. Mostly clear, with a low around 60. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday
Isolated showers after 1pm. Mostly sunny, with a high near 80. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 59. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 83. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 90. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. South wind around 5 mph.
Tuesday
Sunny, with a high near 97.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 98.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E San Marcos TX
 29.88°N 97.91°W (Elev. 597 ft)
Last Update:
3:42 am CDT May 9, 2025
Forecast Valid:
3am CDT May 9, 2025-6pm CDT May 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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