Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

72°F

22°C

Humidity	71%
Wind Speed	W 3 mph
Barometer	29.97 in (1014.1 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Last update	29 Nov 5:56 pm CST

More Information:

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

Extended Forecast for

2 Miles W San Marcos TX

Tonight
Low: 43 °F
Chance
Showers
Sunday
High: 48 °F
Cloudy
Sunday Night
Low: 40 °F
Slight Chance
T-storms then
Chance
Showers
Monday
High: 48 °F
Chance
Showers
Monday Night
Low: 39 °F
Mostly Cloudy
Tuesday
High: 59 °F
Mostly Sunny
Tuesday Night
Low: 38 °F
Partly Cloudy
Wednesday
High: 63 °F
Mostly Cloudy
Wednesday Night
Low: 50 °F
Chance
Showers

Detailed Forecast

Tonight

A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 3am. Increasing clouds, with a low around 43. 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 of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Cloudy, with a high near 48. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.

Sunday Night

A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Cloudy, with a low around 40. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Monday

A 50 percent chance of showers. Cloudy, with a high near 48. North northeast wind 5 to 10 mph.

Monday Night

Mostly cloudy, with a low around 39. North wind 5 to 10 mph.

Tuesday

Mostly sunny, with a high near 59. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night

Partly cloudy, with a low around 38. East wind around 5 mph becoming calm.

Wednesday

Mostly cloudy, with a high near 63. South wind around 5 mph.

Wednesday Night

A 40 percent chance of showers. Cloudy, with a low around 50. Light and variable wind becoming north northeast 5 to 10 mph after midnight.