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

New Braunfels National Airport (KBAZ)

Lat: 29.71°NLon: 98.04°WElev: 658ft.

Partly Cloudy

98°F

37°C

Humidity 36%
Wind Speed S 10 G 23 mph
Barometer 30.02 in (1015.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 14 Aug 2:51 pm CDT
Extended Forecast for

6 Miles WSW San Marcos TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 97. Heat index values as high as 101. South wind around 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 98 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 98. South wind around 5 mph.

    High: 98 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South southwest wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 98. Calm wind becoming south around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. South southwest wind around 5 mph.

    High: 99 °F

    Hot

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 97. Heat index values as high as 101. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 98. South wind around 5 mph.
Sunday Night
Mostly clear, with a low around 74. South southwest wind 5 to 10 mph.
Monday
Sunny, with a high near 98. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. South southwest wind around 5 mph.
Tuesday Night
Clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 100.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW San Marcos TX
 29.83°N 98.02°W (Elev. 797 ft)
Last Update:
2:44 pm CDT Aug 14, 2026
Forecast Valid:
3pm CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
Forecast Discussion
 
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Additional Resources

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