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.

A Few Clouds

80°F

27°C

Humidity 37%
Wind Speed NW 14 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 24 Aug 3:54 pm CDT
Extended Forecast for

2 Miles SSW Lake St. Louis MO

  • Tonight

    Tonight: Mostly clear, with a low around 52. Northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 76. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Northwest wind 5 to 9 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 76. Calm wind becoming northwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. Light and variable wind.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly cloudy, with a low around 58.
Thursday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lake St. Louis MO
 38.77°N 90.79°W (Elev. 600 ft)
Last Update:
2:21 pm CDT Aug 24, 2025
Forecast Valid:
4pm CDT Aug 24, 2025-6pm CDT Aug 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation