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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog/Mist

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in (1018.9 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 16 Oct 6:54 am CDT
Extended Forecast for

3 Miles SW Lake St. Louis MO

  • Today

    Today: Sunny, with a high near 83. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southeast wind 5 to 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. South wind 6 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Mostly clear, with a low around 64. South wind 7 to 9 mph.

    Low: 64 °F

    Mostly Clear
    then Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 80. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Calm wind becoming southeast 5 to 8 mph in the morning.
Tonight
Partly cloudy, with a low around 59. Southeast wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 84. South wind 6 to 10 mph.
Friday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 64. South wind 7 to 9 mph.
Saturday
Showers and possibly a thunderstorm. High near 80. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 48. Chance of precipitation is 70%.
Sunday
Sunny, with a high near 66.
Sunday Night
Clear, with a low around 43.
Monday
Sunny, with a high near 73.
Monday Night
A 30 percent chance of showers, mainly after 1am. Mostly clear, with a low around 52.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Lake St. Louis MO
 38.77°N 90.82°W (Elev. 597 ft)
Last Update:
5:56 am CDT Oct 16, 2025
Forecast Valid:
7am CDT Oct 16, 2025-6pm CDT Oct 22, 2025
 
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