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

70°F

21°C

Humidity 35%
Wind Speed S 18 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Apr 12:51 pm CDT
Extended Forecast for

Florissant MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. South wind around 16 mph, with gusts as high as 25 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind 9 to 11 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Southwest wind 8 to 10 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61. South wind around 10 mph.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Southwest wind around 9 mph becoming northwest in the afternoon. Chance of precipitation is 70%.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 75. South wind around 16 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 57. South wind 9 to 11 mph.
Thursday
Sunny, with a high near 80. Southwest wind 8 to 10 mph.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61. South wind around 10 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Southwest wind around 9 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 81. 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:
12:51 pm CDT Apr 8, 2026
Forecast Valid:
1pm CDT Apr 8, 2026-6pm CDT Apr 14, 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