Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Hazardous Weather Conditions

Wind Advisory in effect from December 28, 06:00 PM CST until December 29, 12:00 PM CST

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Partly Cloudy

65°F

18°C

Humidity	97%
Wind Speed	S 6 mph
Barometer	29.92 in (1012.3 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	28 Dec 2:56 am CST

More Information:

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

Extended Forecast for

San Marcos TX

Wind Advisory December 28, 06:00pm until December 29, 12:00pm

Click here for hazard details and duration

Wind Advisory

Overnight
Low: 66 °F
Cloudy
Sunday
High: 79 °F
Decreasing
Clouds
Sunday Night
Low: 43 °F
Slight Chance
Showers then
Mostly Cloudy
and Breezy
Monday
High: 51 °F
Partly Sunny
and Breezy
then Mostly
Cloudy
Monday Night
Low: 39 °F
Mostly Cloudy
Tuesday
High: 54 °F
Mostly Sunny
Tuesday Night
Low: 36 °F
Partly Cloudy
Wednesday
High: 58 °F
Mostly Sunny
Wednesday Night
Low: 41 °F
Partly Cloudy

Detailed Forecast

Overnight

Cloudy, with a low around 66. South wind around 10 mph, with gusts as high as 20 mph.

Sunday

Cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday Night

A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 43. Breezy, with a west southwest wind 5 to 10 mph becoming north northeast 15 to 25 mph in the evening. Winds could gust as high as 40 mph.

Monday

Mostly cloudy, with a high near 51. Breezy, with a north northeast wind 15 to 25 mph, with gusts as high as 40 mph.

Monday Night

Mostly cloudy, with a low around 39. North wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday

Mostly sunny, with a high near 54. North wind 5 to 10 mph.

Tuesday Night

Partly cloudy, with a low around 36. Calm wind.

Wednesday

Mostly sunny, with a high near 58. Calm wind becoming southwest around 5 mph in the morning.

Wednesday Night

Partly cloudy, with a low around 41. South southwest wind around 5 mph.