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.

Fair

78°F

26°C

Humidity 33%
Wind Speed Calm
Barometer 30.08 in (1018.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Nov 12:56 pm CST
Extended Forecast for

4 Miles SSW Driftwood TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. North northeast wind around 5 mph becoming calm.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 51. Calm wind becoming west around 5 mph after midnight.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 75. West northwest wind around 5 mph becoming calm in the morning.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. East southeast wind around 5 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Partly sunny, with a high near 66. East northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.

    High: 66 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely. Cloudy, with a low around 53. East southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm before noon, then showers likely. High near 64. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 64 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 49. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 49 °F

    Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 56. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 74. North northeast wind around 5 mph becoming calm.
Tonight
Clear, with a low around 51. Calm wind becoming west around 5 mph after midnight.
Friday
Sunny, with a high near 75. West northwest wind around 5 mph becoming calm in the morning.
Friday Night
Partly cloudy, with a low around 49. East southeast wind around 5 mph.
Saturday
A 30 percent chance of showers after noon. Partly sunny, with a high near 66. East northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Showers likely. Cloudy, with a low around 53. East southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm before noon, then showers likely. High near 64. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 49. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, with a high near 56. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
Mostly cloudy, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Driftwood TX
 30.06°N 98.05°W (Elev. 1115 ft)
Last Update:
1:42 pm CST Nov 12, 2026
Forecast Valid:
1pm CST Nov 12, 2026-6pm CST Nov 18, 2026
 
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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