Significant Flooding to Continue Across Portions of the South; Another Round of Heavy Snows Across the Desert Southwest through Tonight

Periods of heavy rainfall will continue to enhance river flooding and the risk for flash flooding from the Ohio and Mississippi Valleys to the Deep South through this weekend. Additionally, severe thunderstorms with damaging winds and a few tornadoes are possible across this region on Saturday. Heavy snows, even in lower elevations, return to the Desert Southwest through tonight. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

57°F

14°C

Humidity 67%
Wind Speed N 8 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Feb 1:56 pm CST
Extended Forecast for

San Marcos TX

  • This
    Afternoon

    This Afternoon: A 20 percent chance of showers.  Cloudy, with a high near 59. Northeast wind around 10 mph.

    Slight Chance
    Showers

    High: 59 °F

  • Tonight

    Tonight: A 40 percent chance of showers.  Cloudy, with a low around 50. North northeast wind 5 to 10 mph.

    Chance
    Showers

    Low: 50 °F

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Cloudy, with a high near 66. North northeast wind around 5 mph.

    Chance
    Showers

    High: 66 °F

  • Friday
    Night

    Friday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 56. East wind 5 to 10 mph becoming south southwest after midnight.  Chance of precipitation is 60%.

    Showers
    Likely

    Low: 56 °F

  • Saturday

    Saturday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 70. Southwest wind 10 to 20 mph becoming west northwest in the morning. Winds could gust as high as 30 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms then
    Slight Chance
    Showers

    High: 70 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 40. West northwest wind 5 to 10 mph becoming north after midnight.

    Mostly Clear

    Low: 40 °F

  • Sunday

    Sunday: Sunny, with a high near 65. North wind around 10 mph becoming east in the afternoon.

    Sunny

    High: 65 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 42. East northeast wind 5 to 10 mph.

    Mostly Clear

    Low: 42 °F

  • Monday

    Monday: Mostly sunny, with a high near 67. Southeast wind 5 to 10 mph.

    Mostly Sunny

    High: 67 °F

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Cloudy, with a high near 59. Northeast wind around 10 mph.
Tonight
A 40 percent chance of showers. Cloudy, with a low around 50. North northeast wind 5 to 10 mph.
Friday
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 66. North northeast wind around 5 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. East wind 5 to 10 mph becoming south southwest after midnight. Chance of precipitation is 60%.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 70. Southwest wind 10 to 20 mph becoming west northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 40. West northwest wind 5 to 10 mph becoming north after midnight.
Sunday
Sunny, with a high near 65. North wind around 10 mph becoming east in the afternoon.
Sunday Night
Mostly clear, with a low around 42. East northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 67. Southeast wind 5 to 10 mph.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 52.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 66.
Click Map For Forecast
Point Forecast:
San Marcos TX
 29.88°N 97.94°W (Elev. 577 ft)
10:43 am CST Feb 21, 2019
2pm CST Feb 21, 2019-6pm CST Feb 27, 2019
 
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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