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

20°F

-7°C

Humidity 57%
Wind Speed NW 5 mph
Barometer 30.38 in (1030.6 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 27 Jan 6:51 pm CST
Extended Forecast for

Florissant MO

  • Tonight

    Tonight: Mostly clear, with a low around 2. Northwest wind around 6 mph becoming light and variable in the evening.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 30. Light southwest wind becoming west 5 to 10 mph in the morning.

    High: 30 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 10. West wind around 5 mph becoming calm in the evening.

    Low: 10 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 21. Northeast wind 3 to 6 mph.

    High: 21 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. North wind 3 to 6 mph.

    Low: 6 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 16.

    High: 16 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 18.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 2. Northwest wind around 6 mph becoming light and variable in the evening.
Wednesday
Mostly sunny, with a high near 30. Light southwest wind becoming west 5 to 10 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 10. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 21. Northeast wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 6. North wind 3 to 6 mph.
Friday
Mostly sunny and cold, with a high near 16.
Friday Night
Partly cloudy, with a low around 2.
Saturday
Mostly sunny and cold, with a high near 18.
Saturday Night
Partly cloudy, with a low around 3.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 27.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 16.
Monday
Partly sunny, with a high near 32.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.8°N 90.31°W (Elev. 525 ft)
Last Update:
4:31 pm CST Jan 27, 2026
Forecast Valid:
7pm CST Jan 27, 2026-6pm CST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation