O'Fallon, Illinois Weather
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Weather Forecast for O'Fallon, Illinois : St. Clair County
Issued: 6:52 am CDT Mar 28, 2024 Latitude: 38.5922715 Longitude: -89.9112124 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on This Afternoon Mostly Clear on Tonight Mostly Sunny on Friday 20% chance of  on Saturday 40% chance of thunderstorms on Sunday 70% chance of thunderstorms on Monday 20% chance of thunderstorms on Tuesday Sunny on Wednesday
High: 64°F Low: 42°F High: 72°F High: 75°F High: 75°F High: 77°F High: 62°F High: 58°F
Low: 57°F Low: 53°F Low: 61°F Low: 51°F Low: 38°F  
Sunny Mostly Clear Mostly Sunny Partly Sunny Thunderstorms Thunderstorms Thunderstorms Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
57°
Clear
as of 11:55 AM CDST
Rel. Humidity: 38%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
8 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
55°
Clear
as of 11:53 AM CDST
Rel. Humidity: 35%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
7 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
ALTON - (KALN)
55°
Clear
as of 11:50 AM CDST
Rel. Humidity: 37%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
12 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
57°
Clear
as of 11:51 AM CDST
Rel. Humidity: 33%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
9 MPH
190° South
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 64. Southwest wind 9 to 11 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 42. Southwest wind 6 to 8 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 72. South wind 7 to 17 mph, with gusts as high as 25 mph.

20% chance of rain Friday Night Friday Night... A 20 percent chance of showers. Increasing clouds, with a low around 57. South wind 14 to 17 mph, with gusts as high as 28 mph.

20% chance of  Saturday Saturday... A 20 percent chance of showers after 1pm. Partly sunny, with a high near 75. West wind 10 to 13 mph, with gusts as high as 20 mph.

30% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

40% chance of thunderstorms Sunday Sunday... A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.

40% chance of thunderstorms Sunday Night Sunday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.

70% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.

70% chance of thunderstorms Monday Night Monday Night... Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. Breezy. Chance of precipitation is 70%.

20% chance of thunderstorms Tuesday Tuesday... A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 62.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 38.

Sunny on Wednesday Wednesday... Sunny, with a high near 58.

Current Radar Image


Sun Almanac for O'Fallon, Illinois
Sunrise: 06:49 AM
Sunset: 7:20 PM
Civil Sunrise:06:23 AM
Civil Sunset: 7:46 PM
Nautical Sunrise: 05:51 AM
Nautical Sunset: 8:18 PM
Astro Sunrise: 05:19 AM
Astro Sunset: 8:50 PM
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