Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

46°F

8°C

Humidity 50%
Wind Speed SE 13 mph
Barometer 30.33 in (1027.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 24 Mar 9:51 am CDT
Extended Forecast for

Florissant MO

  • Today

    Today: Partly sunny, with a high near 63. Southeast wind around 9 mph.

    High: 63 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. East wind 6 to 9 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. South wind 6 to 13 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain after 4am.  Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Rain, mainly before 7am.  High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 63. Southeast wind around 9 mph.
Tonight
Mostly cloudy, with a low around 45. East wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 78. South wind 6 to 13 mph.
Wednesday Night
Mostly clear, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 90. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain after 4am. Low around 44. Chance of precipitation is 80%.
Friday
Rain, mainly before 7am. High near 53. Chance of precipitation is 80%.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.8°N 90.31°W (Elev. 525 ft)
2:56 am CDT Mar 24, 2026
10am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database