Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

24°F

-4°C

Humidity 48%
Wind Speed W 7 mph
Barometer 30.11 in (1021.0 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 15 Jan 10:51 am CST
Extended Forecast for

Florissant MO

  • Today

    Today: Sunny, with a high near 35. West wind 6 to 8 mph becoming south in the afternoon.

    High: 35 °F

    Sunny

  • Tonight

    Tonight: A chance of snow before midnight, then scattered flurries after 5am.  Cloudy, then gradually becoming partly cloudy, with a low around 30. South wind 7 to 10 mph becoming west after midnight.  Chance of precipitation is 50%.

    Low: 30 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44. West wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Scattered snow showers.  Mostly cloudy, with a low around 21. West wind 10 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 40%.

    Low: 21 °F

    Scattered
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 25. West wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 25 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 35. West wind 6 to 8 mph becoming south in the afternoon.
Tonight
A chance of snow before midnight, then scattered flurries after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 30. South wind 7 to 10 mph becoming west after midnight. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 44. West wind 11 to 16 mph, with gusts as high as 26 mph.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 21. West wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 25. West wind 13 to 15 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 25.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.8°N 90.31°W (Elev. 525 ft)
9:31 am CST Jan 15, 2026
11am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
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