Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

65°F

18°C

Humidity	66%
Wind Speed	SE 16 mph
Barometer	30.16 in (1021.0 mb)
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Last update	28 Nov 6:56 pm CST

More Information:

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

Extended Forecast for

San Marcos TX

Tonight
Low: 59 °F
Showers
Likely
Saturday
High: 75 °F
Chance
Showers then
Slight Chance
T-storms
Saturday Night
Low: 43 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 52 °F
Mostly Cloudy
Sunday Night
Low: 40 °F
Cloudy then
Chance
Showers
Monday
High: 52 °F
Chance
Showers
Monday Night
Low: 37 °F
Mostly Cloudy
Tuesday
High: 58 °F
Mostly Sunny
Tuesday Night
Low: 37 °F
Partly Cloudy

Detailed Forecast

Tonight

Showers likely, mainly after midnight. Cloudy, with a low around 59. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday

A chance of showers before 9am, then a slight chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 75. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. South southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Mostly cloudy, with a high near 52. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.

Sunday Night

A 30 percent chance of showers after midnight. Cloudy, with a low around 40. North northeast wind around 10 mph, with gusts as high as 25 mph.

Monday

A 40 percent chance of showers, mainly before noon. Cloudy, with a high near 52. North northeast wind 5 to 10 mph.

Monday Night

Mostly cloudy, with a low around 37. North wind 5 to 10 mph.

Tuesday

Mostly sunny, with a high near 58. North wind 5 to 10 mph becoming east in the afternoon.

Tuesday Night

Partly cloudy, with a low around 37. East wind around 5 mph becoming calm in the evening.