Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. 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.

Overcast

77°F

25°C

Humidity	85%
Wind Speed	N 5 mph
Barometer	29.71 in (1004.9 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	17 Jun 7:53 am CDT

More Information:

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

Extended Forecast for

4 Miles WSW 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: 92 °F
Mostly Sunny
Tonight
Low: 77 °F
Mostly Clear
Thursday
High: 97 °F
Decreasing
Clouds
Thursday Night
Low: 79 °F
Increasing
Clouds
Juneteenth
High: 93 °F
Mostly Cloudy
then Slight
Chance
T-storms
Friday Night
Low: 77 °F
Chance
T-storms
Saturday
High: 90 °F
Chance
T-storms
Saturday Night
Low: 76 °F
Chance
T-storms
Sunday
High: 93 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 92. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon.

Tonight

Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 97. Heat index values as high as 111. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday Night

Increasing clouds, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

Juneteenth

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Southeast wind around 10 mph.

Friday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 5 to 10 mph.

Saturday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southeast wind 5 to 10 mph.

Saturday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

Sunday

Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.