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

75°F

24°C

Humidity 90%
Wind Speed SE 7 mph
Barometer 30.06 in (1017.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 15 Oct 8:56 am CDT
Extended Forecast for

Maxwell TX

  • Today

    Today: Mostly sunny, with a high near 91. Southeast wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 63. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 20 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 7am. Partly sunny, with a high near 70. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph.

    High: 70 °F

    Chance
    Showers and
    Breezy then
    Mostly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 49. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 69. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. North wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. North wind around 5 mph becoming east northeast in the afternoon.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78. Calm wind becoming east northeast around 5 mph.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 91. Southeast wind 5 to 10 mph.
Tonight
A 50 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 63. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 20 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 30 percent chance of showers before 7am. Partly sunny, with a high near 70. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph.
Friday Night
Mostly clear, with a low around 49. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Saturday
Sunny, with a high near 69. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 46. North wind around 5 mph.
Sunday
Sunny, with a high near 73. North wind around 5 mph becoming east northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 50. Calm wind.
Monday
Mostly sunny, with a high near 78. Calm wind becoming east northeast around 5 mph.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Maxwell TX
 29.91°N 97.81°W (Elev. 656 ft)
Last Update:
6:46 am CDT Oct 15, 2026
Forecast Valid:
9am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

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