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.

Overcast and Windy

47°F

8°C

Humidity 74%
Wind Speed NW 26 G 41 mph
Barometer 29.72 in (1006.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 28 Dec 4:51 pm CST
Extended Forecast for

Florissant MO

Wind Advisory until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 29, 06:00am

    NOW until 6:00am Mon

    Wind Advisory

  • This Afternoon

    High: 48 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: A slight chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 18. Breezy, with a west wind around 25 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

    Low: 18 °F

    Breezy.
    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 27. Breezy, with a northwest wind 16 to 24 mph, with gusts as high as 37 mph.

    High: 27 °F

    Decreasing
    Clouds and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. West wind 7 to 9 mph.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 48. Breezy, with a west wind around 24 mph, with gusts as high as 37 mph.
Tonight
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 18. Breezy, with a west wind around 25 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 27. Breezy, with a northwest wind 16 to 24 mph, with gusts as high as 37 mph.
Monday Night
Partly cloudy, with a low around 19. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 37. West wind 7 to 9 mph.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 26.
New Year's Day
Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 41.
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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:
4:21 pm CST Dec 28, 2025
Forecast Valid:
5pm CST Dec 28, 2025-6pm CST Jan 4, 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