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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

A Few Clouds

57°F

14°C

Humidity 96%
Wind Speed Calm
Barometer 30.23 in (1023.4 mb)
Dewpoint 56°F (13°C)
Visibility 8.00 mi
Last update 24 Sep 11:54 pm CDT
Extended Forecast for

Chesterfield MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 74. Calm wind becoming east around 5 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 9am. Mostly cloudy, with a high near 72. Light east wind.

    High: 72 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Cloudy then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74.

    High: 74 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. Calm wind.
Friday
Partly sunny, with a high near 74. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers after 9am. Mostly cloudy, with a high near 72. Light east wind.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Calm wind.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 80.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.67°N 90.57°W (Elev. 446 ft)
Last Update:
9:06 pm CDT Sep 24, 2026
Forecast Valid:
12am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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