Keyes Summit, Missouri Weather
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Weather Forecast for Keyes Summit, Missouri : St. Louis County
Issued: 6:06 pm CDT May 9, 2025 Latitude: 38.5672756 Longitude: -90.4628981 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Clear on Tonight Sunny on Saturday Mostly Sunny on Sunday 60% chance of thunderstorms on Monday 40% chance of thunderstorms on Tuesday Sunny on Wednesday Mostly Sunny on Thursday 30% chance of thunderstorms on Friday
Low: 48°F High: 78°F High: 78°F High: 75°F High: 79°F High: 85°F High: 91°F High: 89°F
Low: 53°F Low: 59°F Low: 60°F Low: 62°F Low: 68°F Low: 67°F  
Mostly Clear Sunny Mostly Sunny Thunderstorms Thunderstorms Sunny Mostly Sunny Thunderstorms
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Current Conditions at
SPIRIT OF ST LOUIS - (KSUS)
68°
Clear
as of 6:54 PM CDST
Rel. Humidity: 34%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
8 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
68°
Clear
as of 6:53 PM CDST
Rel. Humidity: 34%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
9 MPH
060° Northeast
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
70°
Clear
as of 6:54 PM CDST
Rel. Humidity: 30%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
10 MPH
070° East
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 48. Northeast wind around 5 mph becoming calm in the evening.
Sunny on Saturday Saturday... Sunny, with a high near 78. Calm wind becoming northeast around 5 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 53. Calm wind.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 78. Calm wind becoming east 5 to 7 mph in the afternoon.
20% chance of rain Sunday Night Sunday Night... A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59. East wind around 6 mph becoming calm in the evening.
60% chance of thunderstorms Monday Monday... A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
20% chance of thunderstorms Monday Night Monday Night... A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 60.
40% chance of thunderstorms Tuesday Tuesday... A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 62.
Sunny on Wednesday Wednesday... Sunny, with a high near 85.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 68.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 91.
20% chance of thunderstorms Thursday Night Thursday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
30% chance of thunderstorms Friday Friday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Current Radar Image


Sun Almanac for Keyes Summit, Missouri
Sunrise: 05:55 AM
Sunset: 8:01 PM
Civil Sunrise:05:26 AM
Civil Sunset: 8:31 PM
Nautical Sunrise: 04:50 AM
Nautical Sunset: 9:07 PM
Astro Sunrise: 04:11 AM
Astro Sunset: 9:46 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.