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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

83°F

28°C

Humidity 55%
Wind Speed N 8 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 25 Jun 2:53 pm CDT
Extended Forecast for

4 Miles S Waterloo IL

Flood Watch June 25, 03:01pm until June 26, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 25, 03:01pm until June 26, 07:00pm

    NOW until 7:00pm Fri

    Flood Watch

  • This Afternoon

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly after midnight. Low around 68. Light and variable wind becoming southeast around 6 mph after midnight. Chance of precipitation is 80%.

    Low: 68 °F

    Chance
    T-storms then
    T-storms

  • Friday

    Friday: Showers and thunderstorms. High near 81. Southwest wind 8 to 10 mph. Chance of precipitation is 90%.

    High: 81 °F

    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 68. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Light southwest wind.
Tonight
Showers and thunderstorms, mainly after midnight. Low around 68. Light and variable wind becoming southeast around 6 mph after midnight. Chance of precipitation is 80%.
Friday
Showers and thunderstorms. High near 81. Southwest wind 8 to 10 mph. Chance of precipitation is 90%.
Friday Night
Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 68. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. Light and variable wind.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Waterloo IL
 38.26°N 90.16°W (Elev. 659 ft)
Last Update:
1:36 pm CDT Jun 25, 2026
Forecast Valid:
3pm CDT Jun 25, 2026-6pm CDT Jul 2, 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