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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

37°F

3°C

Humidity 89%
Wind Speed Calm
Barometer 30.27 in (1025.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 6 Apr 5:54 am CDT
Extended Forecast for

3 Miles SW Lake St. Louis MO

  • Today

    Today: Sunny, with a high near 63. North wind 6 to 10 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. North wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. East wind around 10 mph.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. East wind around 8 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. South wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 63. North wind 6 to 10 mph.
Tonight
Increasing clouds, with a low around 37. North wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 55. East wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 41. East wind around 8 mph.
Wednesday
Mostly sunny, with a high near 73. South wind 8 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 40%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Lake St. Louis MO
 38.77°N 90.82°W (Elev. 597 ft)
Last Update:
4:21 am CDT Apr 6, 2026
Forecast Valid:
6am CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
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