Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

33°F

1°C

Humidity 64%
Wind Speed S 10 mph
Barometer 30.01 in (1017.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 5 Feb 12:51 pm CST
Extended Forecast for

Florissant MO

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 40. South wind 6 to 8 mph.

    High: 40 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. South wind 5 to 8 mph becoming west after midnight.

    Low: 32 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny through mid morning, then becoming mostly cloudy, with a high near 47. West wind 13 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph.

    High: 47 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24. North wind 6 to 14 mph, with gusts as high as 26 mph.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 35. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 35 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 40. South wind 6 to 8 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. South wind 5 to 8 mph becoming west after midnight.
Friday
Sunny through mid morning, then becoming mostly cloudy, with a high near 47. West wind 13 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Partly cloudy, with a low around 24. North wind 6 to 14 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 35. Northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 65.
Tuesday Night
A 40 percent chance of rain. Cloudy, with a low around 44.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Florissant MO
 38.8°N 90.31°W (Elev. 525 ft)
12:26 pm CST Feb 5, 2026
1pm CST Feb 5, 2026-6pm CST Feb 11, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database