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.

A Few Clouds

73°F

23°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 29.82 in (1008.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 18 Jun 4:56 am CDT
Extended Forecast for

3 Miles WNW San Marcos Municipal Airport TX

  • Today

    Today: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 91. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rainfall. High near 79. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 79 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 72. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 72 °F

    Heavy Rain

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. East wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 72. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. East wind 5 to 10 mph.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71. East southeast wind 5 to 10 mph becoming light in the evening.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 91. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Juneteenth
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rainfall. High near 79. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 72. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. East wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 72. East wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. East wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 71. East southeast wind 5 to 10 mph becoming light in the evening.
Saturday
Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW San Marcos Municipal Airport TX
 29.93°N 97.91°W (Elev. 738 ft)
Last Update:
6:42 am CDT Jun 18, 2024
Forecast Valid:
6am CDT Jun 18, 2024-6pm CDT Jun 24, 2024
 
Forecast Discussion
 
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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