Heavy Rainfall Over Northwest Gulf; Severe Thunderstorms Possible in Northeast/Mid-Atlantic Saturday

Excessive rain over southeast Texas and southwest Louisiana through this evening is threatening the area with a potential for flash, urban, and small stream flooding. Isolated to scattered severe thunderstorms capable of producing damaging winds and marginally severe hail should occur Saturday across parts of the Northeast and Mid-Atlantic. Read More >

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Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

A Few Clouds

94°F

34°C

Humidity	48%
Wind Speed	NE 6 mph
Barometer	29.94 in (1012.9 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	1 Jul 1:56 pm CDT

More Information:

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

Extended Forecast for

2 Miles WSW San Marcos TX

This
Afternoon

Slight Chance
T-storms
High: 97 °F
Tonight

Slight Chance
T-storms then
Partly Cloudy
Low: 76 °F
Saturday

Sunny then
Slight Chance
T-storms
High: 97 °F
Saturday
Night

Partly Cloudy
Low: 77 °F
Sunday

Mostly Sunny
High: 97 °F
Sunday
Night

Partly Cloudy
Low: 76 °F
Independence
Day

Mostly Sunny
High: 98 °F
Monday
Night

Partly Cloudy
Low: 76 °F
Tuesday

Hot
High: 99 °F

Detailed Forecast

This Afternoon

A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 97. Heat index values as high as 104. East wind around 5 mph.

Tonight

A 10 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

Saturday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Heat index values as high as 105. South wind 5 to 15 mph, with gusts as high as 20 mph.

Saturday Night

Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday

Mostly sunny, with a high near 97. South wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

Independence Day

Mostly sunny, with a high near 98. South wind 5 to 15 mph, with gusts as high as 25 mph.

Monday Night

Partly cloudy, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

Tuesday

Mostly sunny and hot, with a high near 99. South wind 5 to 10 mph, with gusts as high as 20 mph.