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

51°F

11°C

Humidity 45%
Wind Speed N 10 mph
Barometer 30.31 in (1026.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 7 Apr 12:51 am CDT
Extended Forecast for

Florissant MO

  • Overnight

    Overnight: Cloudy, with a low around 39. North wind around 11 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 54. East wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 54 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 42. East wind around 9 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 74. South wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 74 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. South wind 9 to 11 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Cloudy, with a low around 39. North wind around 11 mph, with gusts as high as 23 mph.
Tuesday
A 20 percent chance of rain before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 54. East wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Increasing clouds, with a low around 42. East wind around 9 mph.
Wednesday
Partly sunny, with a high near 74. South wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 54. South wind 9 to 11 mph.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 58.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
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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:
12:31 am CDT Apr 7, 2026
Forecast Valid:
1am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation