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

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair with Haze

88°F

31°C

Humidity 63%
Wind Speed E 9 mph
Barometer 29.75 in (1006.0 mb)
Dewpoint 74°F (23°C)
Visibility 6.00 mi
Heat Index97°F (36°C)
Last update 27 Apr 6:53 pm CDT
Extended Forecast for

San Antonio, Stinson Municipal Airport TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 95. Heat index values as high as 104. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 73. South southeast wind 5 to 10 mph.

    Low: 73 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Heat index values as high as 100. East wind 5 to 10 mph.

    High: 93 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East northeast wind around 10 mph.

    Low: 69 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind around 15 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. East wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Breezy, with a north wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 95. Heat index values as high as 104. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Increasing clouds, with a low around 73. South southeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Heat index values as high as 100. East wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East northeast wind around 10 mph.
Thursday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind around 15 mph, with gusts as high as 20 mph.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. East wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Breezy, with a north wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio, Stinson Municipal Airport TX
 29.32°N 98.47°W (Elev. 581 ft)
Last Update:
6:42 pm CDT Apr 27, 2026
Forecast Valid:
7pm CDT Apr 27, 2026-6pm CDT May 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation