Dangerous Heat Continues in the Southwest; Potential Tropical Cyclone Six in the Gulf of Mexico

Dangerous heat will continue across the Southwest U.S. and southern California through Monday. Excessive Heat Warnings and Heat Advisories remain in effect. Potential Tropical Cyclone Six over the southwestern Gulf of Mexico is expected to become a tropical storm Monday, and will strengthen into a hurricane before reaching the northwestern Gulf of Mexico by midweek. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

69°F

21°C

Humidity	44%
Wind Speed	NE 6 mph
Barometer	30.03 in (1016.4 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Last update	8 Sep 8:56 pm CDT

More Information:

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

Extended Forecast for

5 Miles SW San Marcos TX

Tonight
Low: 60 °F
Clear
Monday
High: 85 °F
Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 87 °F
Mostly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 70 °F
Slight Chance
T-storms
Wednesday
High: 85 °F
Chance
T-storms
Wednesday Night
Low: 69 °F
Partly Cloudy
Thursday
High: 89 °F
Mostly Sunny
Thursday Night
Low: 68 °F
Mostly Clear

Detailed Forecast

Tonight

Clear, with a low around 60. North wind around 5 mph.

Monday

Sunny, with a high near 85. Northeast wind around 10 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 65. North northeast wind around 5 mph.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East northeast wind around 5 mph becoming calm.

Wednesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Partly cloudy, with a low around 69. Northeast wind 5 to 10 mph becoming light in the evening.

Thursday

Mostly sunny, with a high near 89. North northeast wind around 5 mph.

Thursday Night

Mostly clear, with a low around 68. East northeast wind around 5 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 91.