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.

60°F

16°C

Humidity 100%
Wind Speed SE 10 mph
Barometer 30.26 in (1024.4 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 13 Dec 9:56 am CST
Extended Forecast for

San Marcos TX

  • Today

    Today: A 20 percent chance of showers before 3pm. Cloudy, with a high near 69. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 69 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before midnight, then patchy drizzle with a chance of showers after midnight. Patchy fog after midnight. Otherwise, cloudy, with a low around 63. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Areas of drizzle with a chance of showers before 9am, then a chance of showers after 9am. Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 75. South southwest wind around 5 mph. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers and
    Areas Fog

  • Saturday Night

    Saturday Night: A slight chance of drizzle before 3am, then a slight chance of showers between 3am and 4am, then a slight chance of drizzle after 4am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 62. South southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of drizzle before 9am, then a slight chance of showers after 9am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 64. South southeast wind around 10 mph.

    Low: 64 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind 5 to 10 mph becoming east northeast in the afternoon.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. North northeast wind 5 to 10 mph.

    Low: 54 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 69. North northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 69 °F

    Partly Sunny

Detailed Forecast

Today
A 20 percent chance of showers before 3pm. Cloudy, with a high near 69. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers before midnight, then patchy drizzle with a chance of showers after midnight. Patchy fog after midnight. Otherwise, cloudy, with a low around 63. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
Areas of drizzle with a chance of showers before 9am, then a chance of showers after 9am. Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 75. South southwest wind around 5 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of drizzle before 3am, then a slight chance of showers between 3am and 4am, then a slight chance of drizzle after 4am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 62. South southeast wind around 5 mph. Chance of precipitation is 20%.
Sunday
A slight chance of drizzle before 9am, then a slight chance of showers after 9am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 64. South southeast wind around 10 mph.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind 5 to 10 mph becoming east northeast in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. North northeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 69. North northeast wind around 5 mph becoming east southeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 66.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 38.
Thursday
Sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
San Marcos TX
 29.88°N 97.94°W (Elev. 577 ft)
Last Update:
6:48 am CST Dec 13, 2024
Forecast Valid:
10am CST Dec 13, 2024-6pm CST Dec 19, 2024
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation