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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: 8:52 am CST Jan 1, 2026 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
New Year's Day Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on New Year's Day Mostly Cloudy on Tonight 20% chance of rain on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday 10% chance of rain on Wednesday
High: 45°F Low: 31°F High: 45°F High: 43°F High: 43°F High: 54°F High: 61°F High: 59°F
  Low: 31°F Low: 25°F Low: 32°F Low: 42°F Low: 46°F  
Sunny Mostly Cloudy Rain Partly Sunny Mostly Sunny Sunny Partly Sunny Rain
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Current Conditions at
MARION - (KMWA)
34°
Feels like 25°F
Clear
as of 8:55 AM CST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
10 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
34°
Clear
as of 8:52 AM CST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 7 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
3 MPH
0° North
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
37°
Clear
as of 9:15 AM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
37°
Clear
as of 9:15 AM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
5 MPH
030° Northeast
Cloud Level(s): Clear
Sunny on New Year's Day New Year's Day... Sunny, with a high near 45. Calm wind becoming north northwest around 5 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 31. Light northeast wind.
20% chance of rain Friday Friday... A 20 percent chance of rain after 3pm. Cloudy, with a high near 45. Calm wind becoming east northeast around 5 mph.
30% chance of rain Friday Night Friday Night... A 30 percent chance of rain, mainly before midnight. Cloudy, with a low around 31. North northeast wind around 6 mph.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 43. North northeast wind 3 to 7 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 25. Calm wind.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 43. Calm wind.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 32. Calm wind becoming south around 6 mph after midnight.
Sunny on Monday Monday... Sunny, with a high near 54. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 42. South wind around 6 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 61. South southwest wind 6 to 9 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 46. South southwest wind 3 to 5 mph.
10% chance of rain Wednesday Wednesday... A slight chance of rain. Partly sunny, with a high near 59. Southwest wind 3 to 6 mph.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:11 AM
Sunset: 4:49 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:18 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:51 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:23 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.