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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

20°F

-7°C

Humidity 34%
Wind Speed W 16 G 29 mph
Barometer 30.42 in (1031.7 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 19 Jan 12:51 pm CST
Extended Forecast for

Florissant MO

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 20. West wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 20 °F

    Cold

  • Tonight

    Tonight: Mostly clear, with a low around 14. West wind around 6 mph becoming light and variable.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. South wind 5 to 10 mph.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 32. South wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 45. West wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Sunny and cold, with a high near 20. West wind 8 to 15 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 14. West wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 38. South wind 5 to 10 mph.
Tuesday Night
Increasing clouds, with a low around 32. South wind 9 to 14 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 45. West wind 7 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 24.
Thursday
Sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly cloudy, with a high near 26.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 3.
Saturday
A 20 percent chance of snow. Mostly cloudy and cold, with a high near 15.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.8°N 90.31°W (Elev. 525 ft)
Last Update:
1:26 pm CST Jan 19, 2026
Forecast Valid:
1pm CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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