Blizzard Conditions Are Forecast Across Parts of the Northern Plains and Upper Great Lakes

In the north-central U.S., a strong storm will continue to bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest tonight before moving across the Great Lakes with heavy lake effect snow Wednesday into Thanksgiving Day. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

61°F

16°C

Humidity	75%
Wind Speed	Calm
Barometer	30.19 in (1021.7 mb)
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Last update	25 Nov 11:56 pm CST

More Information:

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

Extended Forecast for

San Marcos TX

Overnight
Low: 51 °F
Mostly Clear
Wednesday
High: 64 °F
Sunny
Wednesday Night
Low: 44 °F
Mostly Clear
Thanksgiving Day
High: 65 °F
Mostly Sunny
Thursday Night
Low: 47 °F
Mostly Cloudy
Friday
High: 66 °F
Mostly Cloudy
Friday Night
Low: 58 °F
Chance
Showers
Saturday
High: 74 °F
Slight Chance
Showers then
Chance
T-storms
Saturday Night
Low: 45 °F
Chance
T-storms

Detailed Forecast

Overnight

Mostly clear, with a low around 51. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.

Wednesday

Sunny, with a high near 64. North northeast wind 10 to 15 mph, with gusts as high as 30 mph.

Wednesday Night

Mostly clear, with a low around 44. North northeast wind around 5 mph.

Thanksgiving Day

Mostly sunny, with a high near 65. East northeast wind around 5 mph.

Thursday Night

Mostly cloudy, with a low around 47. East northeast wind around 5 mph becoming calm.

Friday

Mostly cloudy, with a high near 66. East northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

Friday Night

A chance of showers, with thunderstorms also possible after 9pm. Cloudy, with a low around 58. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 74. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Saturday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 45. South southwest wind 5 to 10 mph becoming north after midnight.

Sunday

A 20 percent chance of showers. Mostly cloudy, with a high near 57.

Sunday Night

A 40 percent chance of showers. Cloudy, with a low around 41.

Monday

A 40 percent chance of showers. Cloudy, with a high near 52.

Monday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 38.

Tuesday

A 20 percent chance of showers. Partly sunny, with a high near 55.