Powerful Pacific Storm to Bring Widespread Hazardous Weather to West Coast; Two Storm Systems to Impact Central and Eastern U.S.

A powerful Pacific storm will hammer the West Coast into Friday with strong winds, heavy rain and heavy mountain snow. Heavy rain will bring a threat of flash flooding along recent burn scars while blizzard conditions are expected in the Sierras. Meanwhile, two winter storms will bring areas of heavy snow and freezing rain followed by bitter cold into this weekend from the Plains to the Northeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fog/Mist

55°F

13°C

Humidity	93%
Wind Speed	Calm
Barometer	30.19 in (1022.0 mb)
Dewpoint	53°F (12°C)
Visibility	4.00 mi
Last update	16 Jan 1:56 pm CST

More Information:

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

Extended Forecast for

2 Miles WSW San Marcos TX

This
Afternoon

Chance Rain
and Areas Fog
High: 57 °F
Tonight

Patchy Dense
Fog
Low: 52 °F
Thursday

Areas Dense
Fog then
Mostly Sunny
High: 74 °F
Thursday
Night

Mostly Cloudy
then Areas
Fog
Low: 53 °F
Friday

Chance
Showers and
Areas Fog
High: 71 °F
Friday
Night

Showers
Likely
Low: 49 °F
Saturday

Mostly Sunny
then Sunny
and Breezy
High: 55 °F
Saturday
Night

Clear
Low: 31 °F
Sunday

Sunny
High: 52 °F

Detailed Forecast

This Afternoon

A 50 percent chance of rain, mainly before 3pm. Areas of fog. Otherwise, cloudy, with a high near 57. South southeast wind around 5 mph.

Tonight

Patchy dense fog after 9pm. Otherwise, mostly cloudy, with a low around 52. South wind around 5 mph becoming west southwest after midnight.

Thursday

Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 74. West southwest wind around 5 mph.

Thursday Night

Areas of fog after 3am. Otherwise, mostly cloudy, with a low around 53. South southeast wind around 5 mph becoming calm in the evening.

Friday

A 30 percent chance of showers. Areas of fog before 9am. Otherwise, cloudy, with a high near 71. South wind 5 to 15 mph.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. South wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 70%.

Saturday

Mostly sunny, with a high near 55. Breezy, with a north northwest wind 15 to 25 mph, with gusts as high as 30 mph.

Saturday Night

Clear, with a low around 31. North northwest wind 10 to 20 mph, with gusts as high as 30 mph.

Sunday

Sunny, with a high near 52. North wind 5 to 10 mph becoming east northeast in the afternoon.

Sunday Night

Clear, with a low around 31.

M.L.King Day

Sunny, with a high near 61.

Monday Night

Mostly clear, with a low around 44.