7-Day Forecast 29.88°N 97.91°W (Text-Only)
NWS Forecast for: San Marcos TX
Issued by: National Weather Service Austin/San Antonio, TX
Last Update: 10:44 pm CDT May 27, 2024
Print


  • Overnight

    Overnight: Widespread haze after 4am. Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 74. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Patchy Fog



  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe.  Widespread haze before 9am. Patchy fog before 9am.  Otherwise, partly sunny, with a high near 95. Heat index values as high as 105. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Patchy Fog
    then Severe
    Thunderstorms

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 7pm. Some of the storms could be severe.  Mostly cloudy, with a low around 71. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.  New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    Severe
    Thunderstorms


  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 91. Southeast wind 5 to 10 mph.

    High: 91 °F

    Chance
    T-storms


  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 72. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Chance
    T-storms


  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 92. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Chance
    T-storms


  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday
    Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Chance
    T-storms




  • Overnight: Widespread haze after 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 74. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Widespread haze before 9am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 95. Heat index values as high as 105. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 7pm. Some of the storms could be severe. Mostly cloudy, with a low around 71. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts between a quarter and half of an inch possible.

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Southeast wind 5 to 10 mph.

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 72. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Saturday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.

    Saturday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.

    Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.

    Sunday Night: Partly cloudy, with a low around 74.

    Monday: Partly sunny, with a high near 94.



    San Marcos TX
     29.88°N 97.91°W (Elev. 597 ft)

    Visit your local NWS office at: https://www.weather.gov/ewx