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.

Fair

33°F

1°C

Humidity 75%
Wind Speed W 7 mph
Barometer 30.30 in (1026.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 12 Mar 4:51 am CDT
Extended Forecast for

Florissant MO

  • Today

    Today: Sunny, with a high near 56. West wind 5 to 11 mph becoming southwest in the afternoon.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 45. Breezy, with a south wind 13 to 20 mph, with gusts as high as 37 mph.

    Low: 45 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 60. West wind 15 to 18 mph, with gusts as high as 30 mph.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Northwest wind 5 to 8 mph becoming east after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63. East wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 68. Breezy. Chance of precipitation is 80%.

    High: 68 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow before 1am, then a chance of snow. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 60%.

    Low: 23 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 33. Breezy.

    High: 33 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 56. West wind 5 to 11 mph becoming southwest in the afternoon.
Tonight
Increasing clouds, with a low around 45. Breezy, with a south wind 13 to 20 mph, with gusts as high as 37 mph.
Friday
Partly sunny, with a high near 60. West wind 15 to 18 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 38. Northwest wind 5 to 8 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 63. East wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 68. Breezy. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixed with snow before 1am, then a chance of snow. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 33. Breezy.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 39.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 59.
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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:
3:06 am CDT Mar 12, 2026
Forecast Valid:
5am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation