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NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

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 74%
Wind Speed Vrbl 3 mph
Barometer 29.84 in (1009.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 18 May 4:54 am CDT
Extended Forecast for

Ellisville MO

  • Today

    Today: Showers and thunderstorms likely before 11am, then showers and possibly a thunderstorm between 11am and 4pm, then showers and thunderstorms likely after 4pm. High near 80. South wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    High: 80 °F

    Showers then
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 69. South wind around 11 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 84. Southwest wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

    High: 84 °F

    Showers
    Likely then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 55. North wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 68. North wind 7 to 9 mph.

    High: 68 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely before 11am, then showers and possibly a thunderstorm between 11am and 4pm, then showers and thunderstorms likely after 4pm. High near 80. South wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 69. South wind around 11 mph, with gusts as high as 25 mph.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 84. Southwest wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 55. North wind 6 to 8 mph. Chance of precipitation is 80%.
Wednesday
Mostly cloudy, with a high near 68. North wind 7 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 73.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 57.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 87.
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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:
5:51 am CDT May 18, 2026
Forecast Valid:
5am CDT May 18, 2026-6pm CDT May 24, 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