Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

62°F

17°C

Humidity 50%
Wind Speed SW 7 mph
Barometer 29.97 in (1015.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 27 Feb 10:53 am CST
Extended Forecast for

4 Miles SW Waterloo IL

  • Today

    Today: Sunny, with a high near 71. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Southwest wind 6 to 8 mph becoming northeast after midnight.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of rain between 4pm and 5pm.  Mostly sunny, with a high near 68. Northeast wind 6 to 9 mph becoming south in the afternoon.  Chance of precipitation is 20%.

    High: 68 °F

    Sunny then
    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32. South wind 7 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after noon.  Mostly cloudy, with a high near 46. East wind 9 to 11 mph.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Rain before 9pm, then rain and snow.  Low around 33. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before noon, then a slight chance of rain.  Mostly cloudy, with a high near 44. Chance of precipitation is 40%.

    High: 44 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, with thunderstorms also possible after noon.  Cloudy, with a high near 54. Chance of precipitation is 70%.

    High: 54 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 71. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 40. Southwest wind 6 to 8 mph becoming northeast after midnight.
Saturday
A slight chance of rain between 4pm and 5pm. Mostly sunny, with a high near 68. Northeast wind 6 to 9 mph becoming south in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 32. South wind 7 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. East wind 9 to 11 mph.
Sunday Night
Rain before 9pm, then rain and snow. Low around 33. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Tuesday
Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 54. Chance of precipitation is 70%.
Tuesday Night
Rain likely, with thunderstorms also possible after midnight. Cloudy, with a low around 44. Chance of precipitation is 70%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 63. Chance of precipitation is 60%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 69. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Waterloo IL
 38.29°N 90.19°W (Elev. 633 ft)
10:31 am CST Feb 27, 2026
11am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database