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.

Mostly Cloudy

13°C

55°F

Humidity 67%
Wind Speed S 6 km/h
Barometer 1007.9 mb (29.76 in)
Dewpoint 7°C (44°F)
Visibility 16 km
Last update 8 Nov 6:53 pm CST
Extended Forecast for

Waterloo IL

  • Tonight

    Tonight: Isolated showers before 9pm, then scattered sprinkles between 9pm and 11pm. Mostly cloudy, with a low around 2. North wind 11 to 16 km/h becoming northwest 24 to 29 km/h in the evening. Winds could gust as high as 45 km/h. Chance of precipitation is 20%.

    Low: 2 °C

    Isolated
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Scattered sprinkles and flurries before 7am, then scattered flurries. Cloudy through mid morning, then gradual clearing, with a high near 4. Breezy, with a northwest wind 26 to 32 km/h, with gusts as high as 48 km/h.

    High: 4 °C

    Breezy.
    Scattered
    Sprinkles/Flurries
    then
    Scattered
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries. Partly cloudy, with a low around -4. Northwest wind 16 to 23 km/h, with gusts as high as 37 km/h.

    Low: -4 °C

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 4. Northwest wind 19 to 24 km/h decreasing to 13 to 18 km/h in the afternoon. Winds could gust as high as 39 km/h.

    High: 4 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -4. West wind 8 to 10 km/h becoming south after midnight.

    Low: -4 °C

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 12.

    High: 12 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 5.

    Low: 5 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 17.

    High: 17 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 2.

    Low: 2 °C

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers before 9pm, then scattered sprinkles between 9pm and 11pm. Mostly cloudy, with a low around 2. North wind 11 to 16 km/h becoming northwest 24 to 29 km/h in the evening. Winds could gust as high as 45 km/h. Chance of precipitation is 20%.
Sunday
Scattered sprinkles and flurries before 7am, then scattered flurries. Cloudy through mid morning, then gradual clearing, with a high near 4. Breezy, with a northwest wind 26 to 32 km/h, with gusts as high as 48 km/h.
Sunday Night
A chance of flurries. Partly cloudy, with a low around -4. Northwest wind 16 to 23 km/h, with gusts as high as 37 km/h.
Monday
Sunny, with a high near 4. Northwest wind 19 to 24 km/h decreasing to 13 to 18 km/h in the afternoon. Winds could gust as high as 39 km/h.
Monday Night
Mostly clear, with a low around -4. West wind 8 to 10 km/h becoming south after midnight.
Veterans Day
Partly sunny, with a high near 12.
Tuesday Night
Mostly clear, with a low around 5.
Wednesday
Sunny, with a high near 17.
Wednesday Night
Mostly clear, with a low around 2.
Thursday
Sunny, with a high near 17.
Thursday Night
Partly cloudy, with a low around 7.
Friday
Sunny, with a high near 22.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IL
 38.33°N 90.16°W (Elev. 600 m)
Last Update:
5:11 pm CST Nov 8, 2025
Forecast Valid:
7pm CST Nov 8, 2025-6pm CST Nov 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation