National Weather Service

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

17°C

62°F

Humidity	96%
Wind Speed	Calm
Barometer	1017.2 mb (30.05 in)
Dewpoint	16°C (61°F)
Visibility	16 km
Last update	8 Mar 11:56 pm CDT

More Information:

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

Extended Forecast for

San Marcos TX

Overnight
Low: 16 °C
Patchy Fog
Monday
High: 28 °C
Slight Chance
T-storms and
Patchy Fog
Monday Night
Low: 20 °C
Slight Chance
T-storms then
Cloudy
Tuesday
High: 28 °C
Slight Chance
T-storms then
Chance
Showers
Tuesday Night
Low: 17 °C
Chance
Showers then
Showers
Wednesday
High: 28 °C
Chance
Showers
Wednesday Night
Low: 9 °C
Clear
Thursday
High: 22 °C
Sunny
Thursday Night
Low: 9 °C
Clear

Detailed Forecast

Overnight

Patchy fog after 1am. Otherwise, cloudy, with a low around 16. Calm wind.

Monday

A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 28. South wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon. Winds could gust as high as 30 km/h. Chance of precipitation is 20%.

Monday Night

A slight chance of thunderstorms before 7pm. Mostly cloudy, with a low around 20. South wind around 15 km/h. Chance of precipitation is 10%.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 10am. Cloudy, with a high near 28. South wind 15 to 25 km/h, with gusts as high as 45 km/h. Chance of precipitation is 40%.

Tuesday Night

A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 17. South southeast wind 20 to 25 km/h becoming west southwest 15 to 20 km/h after midnight. Winds could gust as high as 40 km/h. Chance of precipitation is 80%.

Wednesday

A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 28. Southwest wind 10 to 15 km/h becoming northwest 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 40%.

Wednesday Night

Clear, with a low around 9. North wind around 25 km/h, with gusts as high as 45 km/h.

Thursday

Sunny, with a high near 22. North wind 15 to 25 km/h, with gusts as high as 35 km/h.

Thursday Night

Clear, with a low around 9. East southeast wind 5 to 10 km/h becoming south southwest after midnight.

Friday

Sunny, with a high near 27.

Friday Night

Clear, with a low around 13.

Saturday

Sunny, with a high near 31.