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

79°F

26°C

Humidity 60%
Wind Speed NE 14 G 18 mph
Barometer 29.97 in (1014.1 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 May 12:56 pm CDT
Extended Forecast for

San Marcos Municipal Airport TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 84. North northeast wind 10 to 15 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Cloudy, with a low around 67. East wind 5 to 10 mph.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. East wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 83 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southeast wind 5 to 10 mph.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 10 mph.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. East wind 5 to 10 mph becoming northwest after midnight.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. West wind 5 to 10 mph becoming northeast in the afternoon.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. Northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 84. North northeast wind 10 to 15 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Cloudy, with a low around 67. East wind 5 to 10 mph.
Sunday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. East wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southeast wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 10 mph.
Monday Night
Mostly clear, with a low around 64. East wind 5 to 10 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 88. West wind 5 to 10 mph becoming northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
San Marcos Municipal Airport TX
 29.9°N 97.86°W (Elev. 600 ft)
Last Update:
1:48 pm CDT May 10, 2024
Forecast Valid:
1pm CDT May 10, 2024-6pm CDT May 16, 2024
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

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