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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

47°F

8°C

Humidity 80%
Wind Speed Calm
Barometer 29.88 in (1011.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Nov 7:53 am CST
Extended Forecast for

Madison ILSimilar City Names

  • Today

    Today: A 20 percent chance of rain after 3pm. Mostly cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon.

    High: 68 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tonight

    Tonight: A chance of rain before 3am, then a chance of sprinkles and flurries between 3am and 5am, then a chance of flurries after 5am. Increasing clouds, with a low around 36. Northwest wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance Rain
    then Chance
    Sprinkles/Flurries

  • Sunday

    Sunday: A chance of sprinkles and flurries before 11am, then a chance of sprinkles between 11am and 4pm, then a chance of sprinkles and flurries after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 42. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.

    High: 42 °F

    Chance
    Sprinkles/Flurries
    and Breezy

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Partly cloudy, with a low around 26. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 26 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 41. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 3pm. Mostly cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon.
Tonight
A chance of rain before 3am, then a chance of sprinkles and flurries between 3am and 5am, then a chance of flurries after 5am. Increasing clouds, with a low around 36. Northwest wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Sunday
A chance of sprinkles and flurries before 11am, then a chance of sprinkles between 11am and 4pm, then a chance of sprinkles and flurries after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 42. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A chance of flurries before midnight. Partly cloudy, with a low around 26. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 41. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 27.
Veterans Day
Partly sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Madison ILSimilar City Names
 38.68°N 90.14°W (Elev. 407 ft)
Last Update:
5:26 am CST Nov 8, 2025
Forecast Valid:
8am CST Nov 8, 2025-6pm CST Nov 14, 2025
 
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Additional Resources

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Chance of Precipitation