Heavy Mountain Snow and High Winds Shifts into the Intermountain West and Plains

A storm system will move bring heavy mountain snow and high winds to the Intermountain West and the Plains. Locally heavy rain from a nearly stalled front on the southern California coastline could cause flash flooding. A new storm will drop south along the West Coast and is expected to bring additional heavy mountain snow, especially, in California. Read More >

Hazardous Weather Conditions

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Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast with Haze

N/A

Humidity	NA
Wind Speed	Calm
Barometer	NA
Dewpoint	N/A
Visibility	6 km
Last update	2 Dec 4:56 am CST

More Information:

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

Extended Forecast for

4 Miles NNW San Marcos Municipal Airport TX

Overnight

Slight Chance
Drizzle and
Areas Fog
Low: 11 °C
Friday

Areas Dense
Fog then
Partly Sunny
High: 22 °C
Friday
Night

Increasing
Clouds
Low: 15 °C
Saturday

Decreasing
Clouds
High: 18 °C
Saturday
Night

Mostly Cloudy
Low: 9 °C
Sunday

Mostly Cloudy
High: 19 °C
Sunday
Night

Mostly Cloudy
then Slight
Chance
Showers
Low: 16 °C
Monday

Partly Sunny
High: 26 °C
Monday
Night

Mostly Cloudy
Low: 17 °C

Detailed Forecast

Overnight

A slight chance of drizzle. Areas of fog. Otherwise, cloudy, with a low around 11. Calm wind.

Friday

Areas of dense fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 22. Light and variable wind becoming south southwest 15 to 20 km/h in the morning. Winds could gust as high as 35 km/h.

Friday Night

Increasing clouds, with a low around 15. South wind 5 to 15 km/h becoming west after midnight.

Saturday

Cloudy, then gradually becoming mostly sunny, with a high near 18. North northeast wind 5 to 10 km/h increasing to 15 to 20 km/h in the morning. Winds could gust as high as 35 km/h.

Saturday Night

Mostly cloudy, with a low around 9. North wind 10 to 15 km/h.

Sunday

Mostly cloudy, with a high near 19. North wind around 10 km/h becoming southeast in the afternoon.

Sunday Night

A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 16. South wind 10 to 15 km/h.

Monday

Partly sunny, with a high near 26. South southwest wind 15 to 20 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h.

Monday Night

Mostly cloudy, with a low around 17. South wind around 15 km/h.

Tuesday

Mostly cloudy, with a high near 26.

Tuesday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 17.

Wednesday

A 30 percent chance of showers. Mostly cloudy, with a high near 24.

Wednesday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 16.

Thursday

A 30 percent chance of showers. Partly sunny, with a high near 23.