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.

Light Rain

55°F

13°C

Humidity 93%
Wind Speed SE 18 mph
Barometer 29.71 in (1006.0 mb)
Dewpoint 53°F (12°C)
Visibility 7.00 mi
Wind Chill50°F (10°C)
Last update 8 Jan 10:51 am CST
Extended Forecast for

Florissant MO

  • Today

    Today: A chance of rain, then showers and possibly a thunderstorm after 3pm. High near 65. Breezy, with a south wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.

    High: 65 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and midnight. Low around 46. Breezy, with a south wind 15 to 21 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%.

    Low: 46 °F

    Showers and
    Breezy then
    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 53. West wind 11 to 16 mph becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Calm wind becoming northwest 5 to 8 mph after midnight.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Partly sunny, with a high near 45. West wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 45 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Today
A chance of rain, then showers and possibly a thunderstorm after 3pm. High near 65. Breezy, with a south wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.
Tonight
Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and midnight. Low around 46. Breezy, with a south wind 15 to 21 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%.
Friday
Mostly cloudy, with a high near 53. West wind 11 to 16 mph becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Calm wind becoming northwest 5 to 8 mph after midnight.
Saturday
A 20 percent chance of rain before noon. Partly sunny, with a high near 45. West wind 9 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 43.
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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:
10:26 am CST Jan 8, 2026
Forecast Valid:
11am CST Jan 8, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation