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Mount Pleasant, Illinois Weather Forecast
Mount Pleasant, Illinois Weather
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Weather Forecast for Mount Pleasant, Illinois : Union County
Issued: 3:16 pm CST Nov 28, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on This Afternoon 40% chance of snow on Tonight 100% chance of rain, snow, & sleet on Saturday Partly Sunny on Sunday 20% chance of snow on Monday 10% chance of snow on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday
High: 37°F Low: 29°F High: 42°F High: 33°F High: 34°F High: 32°F High: 38°F High: 36°F
Low: 26°F Low: 22°F Low: 23°F Low: 18°F Low: 23°F  
Mostly Sunny Snow Rain, Snow, & Sleet Partly Sunny Snow Snow Mostly Sunny Partly Sunny
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Current Conditions at
MARION - (KMWA)
37°
Mostly Cloudy
as of 3:45 PM CST
Rel. Humidity: 40%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 12000ft
Current Conditions at
CARBONDALE - (KMDH)
37°
Clear
as of 3:52 PM CST
Rel. Humidity: 47%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Wind Data
3 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
39°
Mostly Cloudy
as of 3:55 PM CST
Rel. Humidity: 41%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 12000ft
Current Conditions at
CAIRO - (KCIR)
41°
Cloudy
as of 3:55 PM CST
Rel. Humidity: 41%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 12000ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a steady temperature around 37. Calm wind.
40% chance of snow Tonight Tonight... A 40 percent chance of snow showers, mainly after 4am. Increasing clouds, with a low around 29. Calm wind becoming southeast around 6 mph after midnight.
100% chance of rain, snow, & sleet Saturday Saturday... Snow showers, possibly mixed with sleet before 11am, then rain and snow showers between 11am and noon, then rain showers after noon. High near 42. South wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
90% chance of rain Saturday Night Saturday Night... Showers, mainly before midnight. Low around 26. South wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 33. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 22. North wind 3 to 6 mph.
20% chance of snow Monday Monday... A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 34. Northeast wind 3 to 5 mph.
Snow on Monday Night Monday Night... Snow showers likely, mainly before midnight. Cloudy, with a low around 23. Light north northeast wind.
10% chance of snow Tuesday Tuesday... A slight chance of snow showers before noon. Partly sunny, with a high near 32. North northwest wind 3 to 6 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 18. Calm wind.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 38. Calm wind becoming south southwest around 6 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 23. Light and variable wind.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 36. North northwest wind 3 to 6 mph.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 06:50 AM
Sunset: 4:39 PM
Civil Sunrise:06:21 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 05:49 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:17 AM
Astro Sunset: 6:11 PM
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