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

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Overcast

77°F

25°C

Humidity 82%
Wind Speed SE 17 mph
Barometer 29.98 in (1013.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 12 Apr 4:51 pm CDT
Extended Forecast for

3 Miles NNW Leon Valley TX

Flood Advisory until April 12, 06:15pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until April 12, 06:15pm

    NOW until 6:15pm Sun

    Flood Advisory

  • This Afternoon

    High: 79 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Cloudy, with a low around 70. South southeast wind 5 to 10 mph.

    Low: 70 °F

    Severe
    Thunderstorms

  • Monday

    Monday: A slight chance of showers and thunderstorms between 1pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 85 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Increasing clouds, with a low around 68. South southeast wind around 10 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 84. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Cloudy then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. Southeast wind around 5 mph.

    Low: 67 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 79. South wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Cloudy, with a low around 70. South southeast wind 5 to 10 mph.
Monday
A slight chance of showers and thunderstorms between 1pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 20%.
Monday Night
Increasing clouds, with a low around 68. South southeast wind around 10 mph.
Tuesday
Mostly cloudy, with a high near 84. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. Southeast wind around 5 mph.
Thursday
Partly sunny, with a high near 89. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly cloudy, with a high near 90.
Friday Night
Mostly cloudy, with a low around 69.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Sunday
A chance of showers. Mostly cloudy, with a high near 73.
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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:
5:12 pm CDT Apr 12, 2026
Forecast Valid:
5pm CDT Apr 12, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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