Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fog/Mist and Breezy

27°F

-3°C

Humidity	92%
Wind Speed	N 21 mph
Barometer	30.05 in (1017.9 mb)
Dewpoint	25°F (-4°C)
Visibility	3.00 mi
Wind Chill	13°F (-11°C)
Last update	24 Jan 7:56 pm CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles WSW San Marcos TX

Extreme Cold Warning until January 26, 12:00pm

Ice Storm Warning until January 25, 12:00pm

Click here for hazard details and duration

Extreme Cold Warning

Ice Storm Warning

Extreme Cold Warning until January 26, 12:00pm
Ice Storm Warning until January 25, 12:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 21 °F
Wintry Mix
Sunday
High: 32 °F
Decreasing
Clouds
Sunday Night
Low: 16 °F
Mostly Clear
Monday
High: 34 °F
Sunny
Monday Night
Low: 13 °F
Mostly Clear
Tuesday
High: 45 °F
Sunny
Tuesday Night
Low: 27 °F
Partly Cloudy
Wednesday
High: 51 °F
Sunny

Detailed Forecast

Tonight

Freezing rain and sleet, becoming all freezing rain after 4am. Low around 21. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of 0.1 to 0.3 of an inch possible. Total nighttime sleet accumulation of less than a half inch possible.

Sunday

Cloudy, then gradually becoming mostly sunny, with a high near 32. North northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Sunday Night

Mostly clear, with a low around 16. North wind 10 to 15 mph, with gusts as high as 25 mph.

Monday

Sunny, with a high near 34. North wind 5 to 15 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 13. North wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 45. Calm wind becoming south southwest around 5 mph in the morning.

Tuesday Night

Partly cloudy, with a low around 27. South wind around 5 mph becoming calm.