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.

Thunderstorm Rain Fog/Mist

50°F

10°C

Humidity 93%
Wind Speed NW 8 mph
Barometer 30.10 in (1018.8 mb)
Dewpoint 48°F (9°C)
Visibility 3.00 mi
Wind Chill47°F (8°C)
Last update 1 Apr 8:51 am CDT
Extended Forecast for

Florissant MO

  • Today

    Today: Showers and possibly a thunderstorm. High near 58. East wind 7 to 9 mph. Chance of precipitation is 90%.

    High: 58 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a temperature rising to around 66 by 4am. East wind 8 to 14 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    Low: 58 °F⇑

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 77. Breezy, with a south wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.

    High: 77 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 63. South wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 82 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 55. Chance of precipitation is 90%.

    Low: 55 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 58. East wind 7 to 9 mph. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a temperature rising to around 66 by 4am. East wind 8 to 14 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 77. Breezy, with a south wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 63. South wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm. Low around 55. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 57.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 62.
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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:
8:16 am CDT Apr 1, 2026
Forecast Valid:
9am CDT Apr 1, 2026-6pm CDT Apr 7, 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