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.

Fair

76°F

24°C

Humidity 85%
Wind Speed E 3 mph
Barometer 29.89 in (1011.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 29 Jul 12:54 am CDT
Extended Forecast for

Ellisville MO

  • Overnight

    Overnight: Mostly clear, with a low around 71. Light east wind.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. Southeast wind around 6 mph.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.

    High: 88 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 71. Light east wind.
Wednesday
Sunny, with a high near 89. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. Southeast wind around 6 mph.
Friday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 66.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 67.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ellisville MO
 38.58°N 90.6°W (Elev. 699 ft)
Last Update:
1:26 am CDT Jul 29, 2026
Forecast Valid:
1am CDT Jul 29, 2026-6pm CDT Aug 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