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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

55°F

13°C

Humidity 80%
Wind Speed Calm
Barometer 30.13 in (1020.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 12 May 6:53 am CDT
Extended Forecast for

Marlborough MO

  • Today

    Today: Sunny, with a high near 84. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 9pm and 1am. Mostly cloudy, then gradually becoming clear, with a low around 59. Southwest wind around 8 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 77. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 50. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 50 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 84. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A slight chance of showers and thunderstorms between 9pm and 1am. Mostly cloudy, then gradually becoming clear, with a low around 59. Southwest wind around 8 mph becoming northwest after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 77. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Clear, with a low around 50. Northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marlborough MO
 38.58°N 90.35°W (Elev. 531 ft)
Last Update:
6:21 am CDT May 12, 2026
Forecast Valid:
7am CDT May 12, 2026-6pm CDT May 18, 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