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

82°F

28°C

Humidity 47%
Wind Speed Calm
Barometer 29.90 in (1011.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 14 May 10:56 am CDT
Extended Forecast for

4 Miles SW San Marcos TX

  • Today

    Today: Sunny, with a high near 90. North northeast wind 5 to 10 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. East wind 5 to 10 mph becoming south southwest after midnight.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. Southwest wind 5 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 70. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69. Southeast wind 10 to 15 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 69 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67. North northeast wind 5 to 10 mph.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 90. West wind 5 to 10 mph becoming east in the afternoon.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. North northeast wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 64. East wind 5 to 10 mph becoming south southwest after midnight.
Wednesday
Mostly sunny, with a high near 91. Southwest wind 5 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 70. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69. Southeast wind 10 to 15 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. North wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 67. North northeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 90. West wind 5 to 10 mph becoming east in the afternoon.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 93.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW San Marcos TX
 29.83°N 97.96°W (Elev. 630 ft)
Last Update:
7:44 am CDT May 14, 2024
Forecast Valid:
11am CDT May 14, 2024-6pm CDT May 20, 2024
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation