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.

Mostly Cloudy

62°F

17°C

Humidity 86%
Wind Speed Calm
Barometer 30.06 in (1017.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 27 Sep 11:54 pm CDT
Extended Forecast for

Ellisville MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind.

    High: 76 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 65. South wind 3 to 5 mph.

    Low: 65 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 57. Calm wind.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind.
Monday Night
Mostly clear, with a low around 55. Calm wind.
Tuesday
Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 65. South wind 3 to 5 mph.
Wednesday
Partly sunny, with a high near 86.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 70.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Thursday Night
Showers likely, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 67.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ellisville MO
 38.58°N 90.57°W (Elev. 696 ft)
Last Update:
8:36 pm CDT Sep 27, 2026
Forecast Valid:
12am CDT Sep 28, 2026-6pm CDT Oct 4, 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