Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

66°F

19°C

Humidity	90%
Wind Speed	S 6 mph
Barometer	29.99 in (1015.2 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	26 Dec 10:56 pm CST

More Information:

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

Extended Forecast for

San Marcos TX

Tonight
Low: 66 °F
Increasing
Clouds
Saturday
High: 80 °F
Patchy Fog
then Partly
Sunny
Saturday Night
Low: 66 °F
Increasing
Clouds
Sunday
High: 78 °F
Mostly Cloudy
Sunday Night
Low: 43 °F
Chance
Showers and
Breezy
Monday
High: 52 °F
Mostly Cloudy
and Breezy
then Mostly
Cloudy
Monday Night
Low: 38 °F
Mostly Cloudy
Tuesday
High: 54 °F
Partly Sunny
Tuesday Night
Low: 35 °F
Partly Cloudy

Detailed Forecast

Tonight

Increasing clouds, with a low around 66. South southwest wind around 5 mph.

Saturday

Patchy fog between 9am and 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 80. South wind 5 to 10 mph, with gusts as high as 25 mph.

Saturday Night

Increasing clouds, with a low around 66. South southeast wind around 10 mph, with gusts as high as 20 mph.

Sunday

Mostly cloudy, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday Night

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

Monday

Mostly cloudy, with a high near 52. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph.

Monday Night

Mostly cloudy, with a low around 38. North wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday

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

Tuesday Night

Partly cloudy, with a low around 35. Calm wind.

Wednesday

Mostly sunny, with a high near 60.

Wednesday Night

Partly cloudy, with a low around 41.