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Vernon, Illinois Weather Forecast
Vernon, Illinois Weather
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Weather Forecast for Vernon, Illinois : Marion County
Issued: 12:21 pm CST Dec 17, 2025 Latitude: 38.8022697 Longitude: -89.0870086 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Sunny on This Afternoon 20% chance of rain on Tonight 90% chance of thunderstorms on Thursday Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 20% chance of rain on Tuesday
High: 54°F Low: 53 °F High: 43 °F High: 36°F High: 53°F High: 41°F High: 45°F High: 56°F
Low: 22°F Low: 29°F Low: 24°F Low: 27°F Low: 39°F  
Mostly Sunny Rain Thunderstorms Sunny Partly Sunny Mostly Sunny Partly Sunny Rain
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Current Conditions at
SALEM-LECKRONE ARPT - (KSLO)
55°
Clear
as of 2:15 PM CST
Rel. Humidity: 47%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
3 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
Clear
as of 2:15 PM CST
Wind Data
Calm
Current Conditions at
EFFINGHAM COUNTY MEMORIAL - (K1H2)
52°
Clear
as of 2:15 PM CST
Rel. Humidity: 57%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
Clear
as of 1:56 PM CST
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
9 MPH
200° South
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 54. Southeast wind 3 to 6 mph.

20% chance of rain Tonight Tonight... Isolated showers after 2am. Increasing clouds, with a temperature rising to around 53 by 4am. South wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.

90% chance of thunderstorms Thursday Thursday... Showers and possibly a thunderstorm before 4pm, then isolated showers between 4pm and 5pm. Temperature falling to around 43 by 5pm. Breezy, with a south wind 14 to 21 mph becoming west in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 90%.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 22. West wind 13 to 17 mph, with gusts as high as 29 mph.

Sunny on Friday Friday... Sunny, with a high near 36. West wind 6 to 10 mph becoming south in the afternoon.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 29.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 53.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 27.

Partly Sunny on Monday Monday... Partly sunny, with a high near 45.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 39.

20% chance of rain Tuesday Tuesday... A 20 percent chance of rain. Mostly cloudy, with a high near 56.

Current Radar Image


Sun Almanac for Vernon, Illinois
Sunrise: 07:09 AM
Sunset: 4:36 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:06 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:12 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.