National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

80°F

27°C

Humidity 79%
Wind Speed Calm
Barometer 29.74 in (1005.9 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 16 Jun 9:53 pm CDT
Extended Forecast for

3 Miles WSW San Antonio, Stinson Municipal Airport TX

  • Tonight

    Tonight: Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming south around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 95. Heat index values as high as 112. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Partly Cloudy

  • Juneteenth

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

    High: 93 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 5 to 10 mph.

    Low: 77 °F

    Chance
    T-storms

  • Saturday

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

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 76. Southeast wind 10 to 15 mph.

    Low: 76 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 95. Heat index values as high as 112. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, 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. East southeast wind around 10 mph.
Friday Night
A 40 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. South southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 76. Southeast wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 93.
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.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW San Antonio, Stinson Municipal Airport TX
 29.32°N 98.53°W (Elev. 640 ft)
Last Update:
9:50 pm CDT Jun 16, 2026
Forecast Valid:
10pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation