Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

57°F

14°C

Humidity	81%
Wind Speed	NE 8 mph
Barometer	30.18 in (1021.8 mb)
Dewpoint	51°F (11°C)
Visibility	10.00 mi
Last update	23 Nov 7:56 am CST

More Information:

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

Extended Forecast for

3 Miles NNW San Marcos Municipal Airport TX

Today
High: 72 °F
Mostly Cloudy
Tonight
Low: 65 °F
Cloudy then
Slight Chance
Showers
Monday
High: 80 °F
Chance
Showers then
Chance
T-storms
Monday Night
Low: 54 °F
Slight Chance
T-storms then
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 50 °F
Mostly Clear
Wednesday
High: 66 °F
Mostly Sunny
Wednesday Night
Low: 39 °F
Mostly Clear
Thanksgiving Day
High: 67 °F
Sunny

Detailed Forecast

Today

Mostly cloudy, with a high near 72. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

Tonight

A 20 percent chance of showers after midnight. Cloudy, with a low around 65. South southeast wind 5 to 10 mph.

Monday

A chance of showers, with thunderstorms also possible after 9am. Mostly cloudy, with a high near 80. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 54. West northwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

Tuesday

Sunny, with a high near 79. Northwest wind around 5 mph becoming northeast in the afternoon.

Tuesday Night

Mostly clear, with a low around 50. North wind 5 to 10 mph.

Wednesday

Mostly sunny, with a high near 66. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

Wednesday Night

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

Thanksgiving Day

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

Thursday Night

Partly cloudy, with a low around 46.