National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Active Pattern for the Center of the Nation

Severe thunderstorms, excessive rainfall, critical fire weather are all in the outlook today and into this last weekend of April. Very large hail, severe wind gusts, and a couple strong tornadoes will all be possible across the central and southern Plains today. Flash flooding also possible for portions of the Plains and Mississippi Valley. Critical fire weather conditions for Southern High Plains Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast with Haze

70°F

21°C

Humidity 100%
Wind Speed SE 8 mph
Barometer 29.99 in (1014.9 mb)
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 25 Apr 6:56 am CDT
Extended Forecast for

2 Miles E San Marcos TX

  • Today

    Today: A slight chance of drizzle before 10am. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 84. South southeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    Slight Chance
    Drizzle and
    Patchy Fog
    then Partly
    Sunny

    High: 84 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 71. South southeast wind around 20 mph, with gusts as high as 30 mph.

    Mostly Cloudy

    Low: 71 °F

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    High: 83 °F

  • Friday
    Night

    Friday Night: Increasing clouds, with a low around 70. South southeast wind around 15 mph, with gusts as high as 25 mph.

    Increasing
    Clouds

    Low: 70 °F

  • Saturday

    Saturday: Partly sunny, with a high near 85. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 40 mph.

    Partly Sunny
    and Breezy

    High: 85 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Breezy, with a south southeast wind 20 to 25 mph, with gusts as high as 40 mph.

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

    Low: 70 °F

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 81. South southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Showers
    Likely then
    T-storms
    Likely

    High: 81 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. East southeast wind around 10 mph becoming south after midnight.

    Chance
    T-storms

    Low: 68 °F

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 84 °F

Detailed Forecast

Today
A slight chance of drizzle before 10am. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 84. South southeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly cloudy, with a low around 71. South southeast wind around 20 mph, with gusts as high as 30 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Increasing clouds, with a low around 70. South southeast wind around 15 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, with a high near 85. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 40 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Breezy, with a south southeast wind 20 to 25 mph, with gusts as high as 40 mph.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 81. South southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. East southeast wind around 10 mph becoming south after midnight.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84. South southeast wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
2 Miles E San Marcos TX
 29.88°N 97.91°W (Elev. 597 ft)
Last Update:
2:48 am CDT Apr 25, 2024
Forecast Valid:
7am CDT Apr 25, 2024-6pm CDT May 1, 2024
 
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