Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Partly Cloudy and Breezy

85°F

29°C

Humidity	68%
Wind Speed	S 21 G 30 mph
Barometer	30.02 in (1015.8 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	92°F (33°C)
Last update	29 Jun 9:56 am CDT

More Information:

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

Extended Forecast for

2 Miles WSW San Marcos TX

Today
High: 95 °F
Sunny then
Haze
Tonight
Low: 75 °F
Increasing
Clouds
Tuesday
High: 94 °F
Becoming
Sunny
Tuesday Night
Low: 74 °F
Increasing
Clouds
Wednesday
High: 94 °F
Mostly Sunny
Wednesday Night
Low: 74 °F
Mostly Clear
Thursday
High: 94 °F
Mostly Sunny
Thursday Night
Low: 74 °F
Partly Cloudy
Friday
High: 94 °F
Mostly Sunny

Detailed Forecast

Today

Widespread haze after 1pm. Sunny, with a high near 95. Heat index values as high as 100. South southeast wind around 15 mph, with gusts as high as 25 mph.

Tonight

Increasing clouds, with a low around 75. South southeast wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

Tuesday

Partly sunny, then gradually becoming sunny, with a high near 94. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday Night

Increasing clouds, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

Wednesday

Mostly sunny, with a high near 94. South wind 5 to 10 mph.

Wednesday Night

Mostly clear, with a low around 74. South southeast wind 5 to 15 mph.

Thursday

Mostly sunny, with a high near 94. Calm wind becoming south around 5 mph in the morning.

Thursday Night

Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.