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

Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane today as it moves north toward the Big Island of Hawaii. Heavy rainfall may produce life-threatening, catastrophic flooding and mudslides. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

70°F

21°C

Humidity 66%
Wind Speed NW 3 mph
Barometer 30.23 in (1023.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 24 Sep 3:53 pm CDT
Extended Forecast for

Marlborough MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Light northeast wind.

    Low: 63 °F

    Mostly Cloudy

  • Friday

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

    High: 74 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm after midnight.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 72. Calm wind.

    High: 72 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 74.

    High: 74 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60.

    Low: 60 °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

Tonight
Mostly cloudy, with a low around 63. Light northeast wind.
Friday
Mostly cloudy, 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 after midnight.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 72. Calm wind.
Saturday Night
Mostly cloudy, with a low around 61. Calm wind.
Sunday
Mostly cloudy, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 60.
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 69.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 67.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marlborough MO
 38.56°N 90.32°W (Elev. 564 ft)
Last Update:
1:46 pm CDT Sep 24, 2026
Forecast Valid:
4pm CDT Sep 24, 2026-6pm CDT Oct 1, 2026
 
Forecast Discussion
 
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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