Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm to Impact the Northern U.S.

A storm system will shift from eastern Texas into the lower Mississippi Valley Monday with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. A Flood Watch remains in effect. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest Monday into Wednesday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

69°F

21°C

Humidity	96%
Wind Speed	SE 14 mph
Barometer	29.91 in (1012.2 mb)
Dewpoint	68°F (20°C)
Visibility	5.00 mi
Last update	24 Nov 2:56 am CST

More Information:

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

Extended Forecast for

2 Miles W San Marcos TX

Overnight
Low: 64 °F
Slight Chance
Showers
Monday
High: 76 °F
Chance
Showers then
Chance
T-storms
Monday Night
Low: 54 °F
Gradual
Clearing
Tuesday
High: 80 °F
Sunny
Tuesday Night
Low: 51 °F
Mostly Clear
Wednesday
High: 65 °F
Sunny
Wednesday Night
Low: 41 °F
Mostly Clear
Thanksgiving Day
High: 67 °F
Sunny
Thursday Night
Low: 48 °F
Partly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of showers. Cloudy, with a low around 64. South southeast wind around 10 mph.

Monday

A chance of showers, with thunderstorms also possible after 9am. Mostly cloudy, with a high near 76. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

Mostly cloudy during the early evening, then gradual clearing, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 80. Northwest wind around 5 mph becoming northeast in the afternoon.

Tuesday Night

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 65. North northeast wind 10 to 15 mph, with gusts as high as 30 mph.

Wednesday Night

Mostly clear, with a low around 41. North northeast wind around 5 mph.

Thanksgiving Day

Sunny, with a high near 67. North northeast wind around 5 mph becoming east southeast in the afternoon.