O'Fallon, Missouri Weather
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Weather Forecast for O'Fallon, Missouri : St. Louis (city) County
Issued: 10:07 pm CDT May 16, 2024 Latitude: 38.6722 Longitude: -90.2295 View on Google Maps

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Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
40% chance of thunderstorms on Tonight 40% chance of thunderstorms on Friday 30% chance of thunderstorms on Saturday Sunny on Sunday 20% chance of thunderstorms on Monday 50% chance of thunderstorms on Tuesday 20% chance of rain on Wednesday Mostly Sunny on Thursday
Low: 63°F High: 75°F High: 84°F High: 88°F High: 88°F High: 89°F High: 80°F High: 83°F
Low: 61°F Low: 64°F Low: 67°F Low: 70°F Low: 63°F Low: 61°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Thunderstorms Thunderstorms Rain Mostly Sunny
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Current Conditions at
EAST ST LOUIS - (KCPS)
66°
Partly Cloudy
as of 10:53 PM CDST
Rel. Humidity: 100%
Dew Point: 66°F
Visibility: 9 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 10000ft
Current Conditions at
ST LOUIS - (KSTL)
70°
Cloudy
as of 10:51 PM CDST
Rel. Humidity: 77%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.81 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 13000ft, Broken at 19000ft, Solid Overcast at 25000ft
Current Conditions at
ALTON - (KALN)
66°
Partly Cloudy
as of 11:15 PM CDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 12000ft
Current Conditions at
ST CHARLES - (KSET)
66°
Mostly Clear
as of 10:54 PM CDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 11000ft
40% chance of thunderstorms Tonight Tonight... A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 63. Light southwest wind.
40% chance of thunderstorms Friday Friday... A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 75. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 40%.
20% chance of thunderstorms Friday Night Friday Night... A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Southeast wind 3 to 5 mph.
30% chance of thunderstorms Saturday Saturday... A slight chance of showers, then a chance of showers and thunderstorms after 10am. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Sunny on Sunday Sunday... Sunny, with a high near 88.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 67.
20% chance of thunderstorms Monday Monday... A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
40% chance of thunderstorms Monday Night Monday Night... A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
50% chance of thunderstorms Tuesday Tuesday... A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
60% chance of thunderstorms Tuesday Night Tuesday Night... Showers and thunderstorms likely. Partly cloudy, with a low around 63. Chance of precipitation is 60%.
20% chance of rain Wednesday Wednesday... A 20 percent chance of showers. Mostly sunny, with a high near 80.
20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of showers. Mostly clear, with a low around 61.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 83.
Current Radar Image


Sun Almanac for O'Fallon, Missouri
Sunrise: 05:47 AM
Sunset: 8:08 PM
Civil Sunrise:05:16 AM
Civil Sunset: 8:38 PM
Nautical Sunrise: 04:39 AM
Nautical Sunset: 9:16 PM
Astro Sunrise: 03:58 AM
Astro Sunset: 9:56 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.