Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Extreme Heat Warning in effect from June 18, 12:00 PM CDT until June 18, 08:00 PM CDT

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fog/Mist

79°F

26°C

Humidity	94%
Wind Speed	E 6 mph
Barometer	29.63 in (1002.1 mb)
Dewpoint	77°F (25°C)
Visibility	2.50 mi
Heat Index	83°F (28°C)
Last update	18 Jun 6:53 am CDT

More Information:

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

Extended Forecast for

2 Miles N San Antonio, Stinson Municipal Airport TX

Extreme Heat Warning June 18, 12:00pm until June 18, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Today
High: 98 °F
Sunny
Tonight
Low: 79 °F
Increasing
Clouds
Juneteenth
High: 94 °F
Mostly Cloudy
then Chance
T-storms
Friday Night
Low: 78 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 91 °F
Chance
Showers then
Chance
T-storms
Saturday Night
Low: 77 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 94 °F
Mostly Sunny
Sunday Night
Low: 77 °F
Mostly Clear
Monday
High: 94 °F
Mostly Sunny

Detailed Forecast

Today

Sunny, with a high near 98. Heat index values as high as 113. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Tonight

Increasing clouds, with a low around 79. Southeast wind around 10 mph, with gusts as high as 20 mph.

Juneteenth

A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 94. Heat index values as high as 106. East southeast wind around 10 mph, with gusts as high as 20 mph.

Friday Night

A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. East southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Saturday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night

A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 77. Southeast wind around 10 mph, with gusts as high as 20 mph.

Sunday

Mostly sunny, with a high near 94. South wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday Night

Mostly clear, with a low around 77. South southeast wind around 15 mph, with gusts as high as 25 mph.

Monday

Mostly sunny, with a high near 94. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 76.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

Tuesday Night

Mostly clear, with a low around 75.