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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: 5:31 pm CST Jan 9, 2026 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
30% chance of rain on Tonight 20% chance of rain on Saturday Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday 10% chance of on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday
Low: 44°F High: 48°F High: 39°F High: 47°F High: 55°F High: 46°F High: 35°F High: 42°F
Low: 28°F Low: 24°F Low: 34°F Low: 38°F Low: 23°F Low: 24°F  
Rain Rain Sunny Sunny Mostly Sunny Partly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
MARION - (KMWA)
45°
Clear
as of 7:35 PM CST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
6 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
46°
Clear
as of 6:52 PM CST
Rel. Humidity: 75%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
5 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
50°
Clear
as of 7:35 PM CST
Rel. Humidity: 71%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
52°
Clear
as of 7:35 PM CST
Rel. Humidity: 76%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
8 MPH
030° Northeast
Cloud Level(s): Clear
30% chance of rain Tonight Tonight... A chance of showers between 3am and 5am. Cloudy, with a low around 44. Calm wind. Chance of precipitation is 30%.
20% chance of rain Saturday Saturday... A slight chance of showers between 9am and 11am. Cloudy through mid morning, then gradual clearing, with a high near 48. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 28. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Sunny on Sunday Sunday... Sunny, with a high near 39. West northwest wind 5 to 10 mph becoming light northwest in the afternoon. Winds could gust as high as 20 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 24. Light and variable wind.
Sunny on Monday Monday... Sunny, with a high near 47. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 34. South southwest wind 6 to 8 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 55. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 38. West southwest wind 5 to 8 mph.
10% chance of Wednesday Wednesday... A slight chance of showers after noon. Partly sunny, with a high near 46. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 23. North northwest wind 6 to 8 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 35. North wind 5 to 7 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 24. Light and variable wind becoming south southwest around 6 mph after midnight.
Partly Sunny on Friday Friday... Partly sunny, with a high near 42. Southwest wind 6 to 9 mph.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:11 AM
Sunset: 4:56 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:25 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:57 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:29 PM
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