Hot in Parts of the West; Cold Blast Coming to the Central U.S.

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >

Hazardous Weather Conditions

Flood Watch until September 1, 12:00 PM CDT

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

74°F

23°C

Humidity	94%
Wind Speed	N 5 mph
Barometer	30.04 in (1016.6 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	1 Sep 3:56 am CDT

More Information:

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

Extended Forecast for

3 Miles WNW San Marcos TX

Flood Watch September 1, 04:43am until September 1, 12:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch September 1, 04:43am until September 1, 12:00pm
NOW until 12:00pm Mon
Flood Watch
Overnight
Low: 72 °F
Chance
T-storms
Labor Day
High: 89 °F
Chance
T-storms
Monday Night
Low: 71 °F
Partly Cloudy
Tuesday
High: 95 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
Wednesday
High: 96 °F
Sunny
Wednesday Night
Low: 66 °F
Mostly Clear
Thursday
High: 97 °F
Sunny

Detailed Forecast

Overnight

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind.

Labor Day

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming north northeast around 5 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 95. Calm wind becoming north around 5 mph in the morning.

Tuesday Night

Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 96. North wind around 5 mph.

Wednesday Night

Mostly clear, with a low around 66. North northeast wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 97. Calm wind becoming south around 5 mph.