Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. 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	93%
Wind Speed	SW 9 mph
Barometer	30.07 in (1017.7 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	26 Dec 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 Municipal Airport TX

Overnight
Low: 64 °F
Areas Fog
Friday
High: 84 °F
Areas Fog
then Mostly
Sunny
Friday Night
Low: 65 °F
Increasing
Clouds
Saturday
High: 80 °F
Decreasing
Clouds
Saturday Night
Low: 65 °F
Mostly Cloudy
Sunday
High: 80 °F
Mostly Cloudy
Sunday Night
Low: 42 °F
Chance
Showers
Monday
High: 51 °F
Mostly Cloudy
Monday Night
Low: 35 °F
Mostly Cloudy

Detailed Forecast

Overnight

Areas of fog. Otherwise, cloudy, with a low around 64. Southwest wind around 5 mph.

Friday

Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 84. South southwest wind 5 to 10 mph.

Friday Night

Increasing clouds, with a low around 65. South southwest wind 5 to 10 mph.

Saturday

Cloudy, then gradually becoming mostly sunny, with a high near 80. South wind around 10 mph.

Saturday Night

Mostly cloudy, with a low around 65. South wind around 10 mph.

Sunday

Mostly cloudy, with a high near 80. South wind 5 to 10 mph.

Sunday Night

A chance of showers before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 42. South wind 5 to 10 mph becoming north 10 to 15 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

Monday

Mostly cloudy, with a high near 51. North wind 15 to 20 mph, with gusts as high as 35 mph.

Monday Night

Mostly cloudy, with a low around 35. North wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday

Mostly cloudy, with a high near 53.

Tuesday Night

Mostly cloudy, with a low around 35.

Wednesday

Mostly sunny, with a high near 62.

Wednesday Night

Mostly cloudy, with a low around 40.