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, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

A Few Clouds

86°F

30°C

Humidity 65%
Wind Speed E 9 mph
Barometer 29.75 in (1005.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 16 Jun 6:51 pm CDT
Extended Forecast for

3 Miles NNW Leon Valley 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 93. Heat index values as high as 105. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 97. Heat index values as high as 113. South southeast wind 5 to 10 mph.

    High: 97 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 80. Southeast wind 5 to 10 mph.

    Low: 80 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. East southeast wind 5 to 10 mph.

    High: 94 °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. East 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 92. South southeast wind 5 to 10 mph.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South southeast wind around 10 mph.

    Low: 77 °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 93. Heat index values as high as 105. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 78. South wind 5 to 10 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 97. Heat index values as high as 113. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 80. Southeast wind 5 to 10 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. East southeast wind 5 to 10 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. East southeast wind 5 to 10 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 92. South southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South southeast wind around 10 mph.
Sunday
Mostly sunny, with a high near 94.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Leon Valley TX
 29.52°N 98.64°W (Elev. 850 ft)
Last Update:
6:44 pm CDT Jun 16, 2026
Forecast Valid:
7pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation