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

62°F

17°C

Humidity 31%
Wind Speed W 16 mph
Barometer 29.76 in (1007.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 13 Jan 2:51 pm CST
Extended Forecast for

Florissant MO

  • Tonight

    Tonight: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 38. West wind 8 to 15 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles, mixing with flurries after 8am, then gradually ending. Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 31 by 5pm. Breezy, with a north wind 15 to 21 mph, with gusts as high as 32 mph.

    High: 39 °F⇓

    Breezy.
    Chance
    Sprinkles/Flurries
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 19. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.

    Low: 19 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 34. Northwest wind around 7 mph becoming south in the afternoon.

    High: 34 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a temperature rising to around 35 by 5am. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 30 °F⇑

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 38. West wind 8 to 15 mph, with gusts as high as 22 mph.
Wednesday
A chance of sprinkles, mixing with flurries after 8am, then gradually ending. Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 31 by 5pm. Breezy, with a north wind 15 to 21 mph, with gusts as high as 32 mph.
Wednesday Night
Clear, with a low around 19. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 34. Northwest wind around 7 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a temperature rising to around 35 by 5am. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 18.
M.L.King Day
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.78°N 90.34°W (Elev. 528 ft)
Last Update:
3:16 pm CST Jan 13, 2026
Forecast Valid:
3pm CST Jan 13, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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