National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog/Mist

55°F

13°C

Humidity 93%
Wind Speed NE 13 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 53°F (12°C)
Visibility 6.00 mi
Wind Chill51°F (11°C)
Last update 20 Apr 3:54 am CDT
Extended Forecast for

Ellisville MO

Flood Watch April 20, 04:12am until April 21, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 20, 04:12am until April 21, 01:00am

    NOW until 1:00am Mon

    Flood Watch

  • Overnight

    Low: 53 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers and thunderstorms likely before noon, then a slight chance of showers and thunderstorms after 5pm. Patchy fog between 8am and 9am. Otherwise, cloudy, with a high near 76. East wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before midnight. Some of the storms could be severe and produce heavy rainfall. Low around 52. Southeast wind 13 to 15 mph becoming southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 100%.

    Low: 52 °F

    Severe
    Thunderstorms
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 69. West wind 10 to 13 mph, with gusts as high as 26 mph.

    High: 69 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Patchy fog after 5am. Otherwise, cloudy, with a low around 53. East wind around 7 mph. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely before noon, then a slight chance of showers and thunderstorms after 5pm. Patchy fog between 8am and 9am. Otherwise, cloudy, with a high near 76. East wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms, mainly before midnight. Some of the storms could be severe and produce heavy rainfall. Low around 52. Southeast wind 13 to 15 mph becoming southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 100%.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 69. West wind 10 to 13 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 49. Light and variable wind.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 80.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 71.
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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:
2:21 am CDT Apr 20, 2025
Forecast Valid:
4am CDT Apr 20, 2025-6pm CDT Apr 26, 2025
 
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