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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: 8:33 pm CST Jan 8, 2026 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
90% chance of thunderstorms on Tonight Partly Sunny on Friday 20% chance of rain on Saturday Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday
Low: 53°F High: 52 °F High: 48°F High: 36°F High: 45°F High: 52°F High: 44°F High: 38°F
Low: 44°F Low: 27°F Low: 23°F Low: 33°F Low: 37°F Low: 26°F  
Thunderstorms Partly Sunny Rain Sunny Sunny Mostly Sunny Mostly Cloudy Mostly Sunny
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Current Conditions at
MARION - (KMWA)
66°
Cloudy
as of 8:15 PM CST
Rel. Humidity: 72%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.68 in.
Flight Rule: MVFR
Wind Data
21 MPH
Gust: 31 MPH
200° South
Cloud Level(s): Broken at 2600ft, Solid Overcast at 3300ft
Current Conditions at
CARBONDALE - (KMDH)
68°
Cloudy
as of 8:23 PM CST
Rel. Humidity: 77%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.64 in.
Flight Rule: VFR
Wind Data
31 MPH
Gust: 52 MPH
210° Southwest
Cloud Level(s): Scattered at 2700ft, Broken at 3400ft, Solid Overcast at 4400ft
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
68°
Cloudy
as of 8:15 PM CST
Rel. Humidity: 72%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: MVFR
Wind Data
15 MPH
Gust: 25 MPH
170° South
Cloud Level(s): Broken at 2700ft, Broken at 3300ft, Solid Overcast at 3900ft
Current Conditions at
CAIRO - (KCIR)
68°
Cloudy
as of 8:15 PM CST
Rel. Humidity: 77%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: MVFR
Wind Data
20 MPH
Gust: 32 MPH
170° South
Cloud Level(s): Broken at 2500ft, Broken at 3100ft, Solid Overcast at 7500ft
90% chance of thunderstorms Tonight Tonight... Showers and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 3am. Low around 53. Breezy, with a south wind 11 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.
Partly Sunny on Friday Friday... Partly sunny, with a temperature falling to around 52 by 5pm. West wind 6 to 11 mph becoming north northeast in the afternoon. Winds could gust as high as 22 mph.
40% chance of rain Friday Night Friday Night... A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 44. Light north northeast wind.
20% chance of rain Saturday Saturday... A 20 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 48. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 27. West northwest wind 6 to 8 mph.
Sunny on Sunday Sunday... Sunny, with a high near 36. Northwest wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 20 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 23. Calm wind.
Sunny on Monday Monday... Sunny, with a high near 45. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 33. South southwest wind around 6 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 52. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
10% chance of rain Tuesday Night Tuesday Night... A slight chance of showers. Mostly cloudy, with a low around 37. West southwest wind 5 to 7 mph.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44. Northwest wind 5 to 9 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 26. North northwest wind around 6 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 38. North northwest wind 5 to 7 mph.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:11 AM
Sunset: 4:55 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:24 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:56 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:28 PM
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