Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

93°F

34°C

Humidity	58%
Wind Speed	SE 10 mph
Barometer	29.87 in (1010.7 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	13 Jun 5:56 pm CDT

More Information:

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

Extended Forecast for

3 Miles NNW Luling TX

Tonight
Low: 75 °F
Slight Chance
T-storms then
Mostly Cloudy
Saturday
High: 93 °F
Partly Sunny
then Chance
T-storms
Saturday Night
Low: 74 °F
Partly Cloudy
Sunday
High: 93 °F
Partly Sunny
then Chance
T-storms
Sunday Night
Low: 74 °F
Partly Cloudy
Monday
High: 93 °F
Partly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 94 °F
Mostly Sunny
Tuesday Night
Low: 75 °F
Mostly Clear

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 75. South southeast wind 5 to 10 mph.

Saturday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 105. South wind 5 to 10 mph.

Saturday Night

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

Sunday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. Light south wind becoming south southeast 5 to 10 mph in the morning.

Sunday Night

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

Monday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Light south wind increasing to 5 to 10 mph in the morning.

Monday Night

Mostly clear, with a low around 74. South southeast wind 5 to 10 mph.

Tuesday

Mostly sunny, with a high near 94. South wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

Wednesday

Mostly sunny, with a high near 95.

Wednesday Night

Partly cloudy, with a low around 74.

Juneteenth

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.