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.

Mostly Cloudy

42°F

6°C

Humidity 55%
Wind Speed W 16 mph
Barometer 29.74 in (1007.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 16 Jan 11:51 am CST
Extended Forecast for

Florissant MO

  • Today

    Today: A slight chance of rain showers between 4pm and 5pm, then scattered rain and snow showers. Mostly cloudy, with a high near 46. West wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 46 °F

    Scattered
    Rain/Snow

  • Tonight

    Tonight: Rain and snow showers likely before 11pm, then scattered snow showers between 11pm and 3am, then scattered flurries after 3am. Mostly cloudy, with a low around 21. West wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Rain/Snow
    Likely then
    Isolated Snow
    Showers

  • Saturday

    Saturday: Scattered flurries after noon. Partly sunny, with a high near 26. West wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 26 °F

    Scattered
    Flurries

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12. West wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of rain showers between 4pm and 5pm, then scattered rain and snow showers. Mostly cloudy, with a high near 46. West wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Tonight
Rain and snow showers likely before 11pm, then scattered snow showers between 11pm and 3am, then scattered flurries after 3am. Mostly cloudy, with a low around 21. West wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Scattered flurries after noon. Partly sunny, with a high near 26. West wind 14 to 16 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 12. West wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 33. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 14.
M.L.King Day
Sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.8°N 90.31°W (Elev. 525 ft)
Last Update:
10:41 am CST Jan 16, 2026
Forecast Valid:
11am CST Jan 16, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation