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.

Overcast

77°F

25°C

Humidity 88%
Wind Speed SE 6 mph
Barometer 29.84 in (1009.2 mb)
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Heat Index78°F (26°C)
Last update 28 Apr 5:53 am CDT
Extended Forecast for

4 Miles NNW San Antonio, Stinson Municipal Airport TX

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 94. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. Light east southeast wind becoming east northeast 5 to 10 mph in the afternoon.

    High: 89 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69. Northeast wind around 10 mph.

    Low: 69 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Mostly cloudy, with a high near 85. East wind around 10 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. East wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56. North wind around 20 mph, with gusts as high as 35 mph.

    Low: 56 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 70. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 94. Heat index values as high as 105. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. Light east southeast wind becoming east northeast 5 to 10 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69. Northeast wind around 10 mph.
Thursday
Mostly cloudy, with a high near 85. East wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. East wind around 10 mph, with gusts as high as 20 mph.
Friday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. East wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56. North wind around 20 mph, with gusts as high as 35 mph.
Saturday
Partly sunny, with a high near 70. North wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW San Antonio, Stinson Municipal Airport TX
 29.39°N 98.5°W (Elev. 607 ft)
Last Update:
5:32 am CDT Apr 28, 2026
Forecast Valid:
6am CDT Apr 28, 2026-6pm CDT May 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation