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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: 6:11 am CST Dec 29, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday New Year's Day Friday Saturday Sunday
Sunny on Today Mostly Clear on Tonight Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day Mostly Cloudy on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday
High: 31°F Low: 18°F High: 36°F High: 45°F High: 41°F High: 42°F High: 42°F High: 44°F
Low: 26°F Low: 26°F Low: 25°F Low: 29°F Low: 24°F  
Sunny Mostly Clear Sunny Mostly Sunny Mostly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny
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Current Conditions at
MARION - (KMWA)
19°
Feels like 2°F
Cloudy
as of 6:45 AM CST
Rel. Humidity: 57%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
23 MPH
Gust: 33 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 3800ft
Current Conditions at
CARBONDALE - (KMDH)
18°
Feels like 3°F
Clear
as of 6:52 AM CST
Rel. Humidity: 52%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 24 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
23°
Feels like 10°F
Clear
as of 6:55 AM CST
Rel. Humidity: 45%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 23 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
23°
Feels like 7°F
Clear
as of 6:55 AM CST
Rel. Humidity: 57%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 26 MPH
310° Northwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 31. Northwest wind 13 to 17 mph, with gusts as high as 29 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 18. Northwest wind 8 to 13 mph, with gusts as high as 21 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 36. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 26. West southwest wind 3 to 5 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 45. West wind 3 to 7 mph.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 26. Calm wind.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 41. Calm wind becoming north around 6 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 25. Calm wind.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph.
10% chance of rain Friday Night Friday Night... A slight chance of showers before midnight. Mostly cloudy, with a low around 29. Light north northeast wind.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 42. North wind 3 to 5 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24. Calm wind.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44. Calm wind becoming south around 6 mph in the morning.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:10 AM
Sunset: 4:47 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:16 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:49 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:20 PM
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