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

6 Miles S 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: 91 °F
Becoming
Sunny
Tonight
Low: 77 °F
Mostly Clear
Thursday
High: 96 °F
Mostly Sunny
Thursday Night
Low: 79 °F
Mostly Cloudy
Juneteenth
High: 92 °F
Partly Sunny
Friday Night
Low: 77 °F
Chance
T-storms
Saturday
High: 90 °F
Slight Chance
T-storms then
Chance
T-storms
Saturday Night
Low: 76 °F
Chance
T-storms
Sunday
High: 92 °F
Mostly Sunny

Detailed Forecast

Today

Partly sunny, then gradually becoming sunny, with a high near 91. 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 sunny, with a high near 96. Heat index values as high as 111. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday Night

Mostly cloudy, with a low around 79. Southeast wind around 10 mph, with gusts as high as 20 mph.

Juneteenth

Partly sunny, with a high near 92. Southeast wind 5 to 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, mainly after 1pm. Partly sunny, with a high near 90. Southeast wind 5 to 10 mph.

Saturday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday Night

Mostly clear, with a low around 77.

Monday

Mostly sunny, with a high near 94.

Monday Night

Partly cloudy, with a low around 77.

Tuesday

Mostly sunny, with a high near 93.