National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in the Mid-Atlantic, Northeast, and Northern Plains; Flash Flooding Possible in Central Plains

Isolated to scattered severe thunderstorms are expected Saturday across parts of the Northeast and Mid-Atlantic, as well as across parts of the northern Plains. Excessive rainfall over a portion of the central Plains may bring flooding Saturday and Sunday. Critical fire weather conditions will exist over the Great Basin and central and southwest Alaska Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

76°F

24°C

Humidity 74%
Wind Speed NE 7 mph
Barometer 29.98 in (1013.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 2 Jul 2:51 am CDT
Extended Forecast for

Florissant MO

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Northeast wind around 9 mph.

    Slight Chance
    T-storms

    Low: 72 °F

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 87. Northeast wind 6 to 8 mph.

    Chance
    T-storms

    High: 87 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. East wind around 6 mph.

    Chance
    T-storms

    Low: 71 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southeast wind 5 to 7 mph.

    Chance
    T-storms

    High: 90 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 75. Southeast wind 3 to 6 mph.

    Partly Cloudy

    Low: 75 °F

  • Independence
    Day

    Independence Day: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.

    Sunny then
    Slight Chance
    T-storms

    High: 96 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 79.

    Mostly Clear

    Low: 79 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100.

    Sunny then
    Slight Chance
    T-storms

    High: 100 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 79.

    Mostly Clear
    then Slight
    Chance
    T-storms

    Low: 79 °F

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Northeast wind around 9 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 87. Northeast wind 6 to 8 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. East wind around 6 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southeast wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 75. Southeast wind 3 to 6 mph.
Independence Day
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 79.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 79.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 100.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Florissant MO
 38.8°N 90.34°W (Elev. 499 ft)
Last Update:
3:11 am CDT Jul 2, 2022
Forecast Valid:
3am CDT Jul 2, 2022-6pm CDT Jul 8, 2022
 
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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