Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

60°F

16°C

Humidity 93%
Wind Speed Calm
Barometer 29.71 in (1005.7 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Jun 1:54 am CDT
Extended Forecast for

Byrnes Mill MO

Wind Advisory June 17, 01:00pm until June 17, 08:00pm
Click here for hazard details and duration
Wind Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am.  Mostly cloudy, with a low around 68. West wind 6 to 14 mph, with gusts as high as 31 mph.  Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 3pm.  Increasing clouds, with a high near 81. Northwest wind around 6 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. Light northwest wind.

    Low: 59 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 62. Calm wind.
Wednesday
Mostly sunny, with a high near 91. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 44 mph.
Wednesday Night
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 68. West wind 6 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers, mainly after 3pm. Increasing clouds, with a high near 81. Northwest wind around 6 mph.
Thursday Night
Mostly cloudy, with a low around 59. Light northwest wind.
Juneteenth
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Byrnes Mill MO
 38.45°N 90.58°W (Elev. 525 ft)
2:31 am CDT Jun 17, 2026
2am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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Additional Resources

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