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

69°F

21°C

Humidity 61%
Wind Speed W 13 G 22 mph
Barometer 29.79 in (1008.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 26 Dec 12:54 pm CST
Extended Forecast for

Ellisville MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. Northwest wind 6 to 9 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 64. Southeast wind 5 to 9 mph.

    High: 64 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 59. South wind 7 to 9 mph.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A chance of rain and thunderstorms before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. High near 73. South wind 7 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    High: 73 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: A 50 percent chance of rain before 9pm. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. Northwest wind 6 to 9 mph.
Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 45. Light and variable wind.
Saturday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 64. Southeast wind 5 to 9 mph.
Saturday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 59. South wind 7 to 9 mph.
Sunday
A chance of rain and thunderstorms before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. High near 73. South wind 7 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of rain before 9pm. Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 20.
New Year's Day
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ellisville MO
 38.58°N 90.57°W (Elev. 696 ft)
Last Update:
1:16 pm CST Dec 26, 2025
Forecast Valid:
1pm CST Dec 26, 2025-6pm CST Jan 1, 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