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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: 8:41 am CST Dec 27, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday New Year's Day Friday
Mostly Cloudy on Today Cloudy on Tonight 70% chance of rain on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day Partly Sunny on Friday
High: 68°F Low: 62°F High: 70°F High: 30°F High: 33°F High: 44°F High: 38°F High: 34°F
Low: 23°F Low: 19°F Low: 24°F Low: 26°F Low: 18°F  
Mostly Cloudy Cloudy Rain Sunny Sunny Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
MARION - (KMWA)
50°
Cloudy
Mist
as of 8:45 AM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 1 Miles
Pressure: 29.97 in.
Flight Rule: LIFR
Wind Data
5 MPH
080° East
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
CARBONDALE - (KMDH)
50°
Cloudy
Fog
as of 8:52 AM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 1/2 Miles
Pressure: 29.97 in.
Flight Rule: LIFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
55°
Cloudy
Mist
as of 9:15 AM CST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 3/4 Miles
Pressure: 29.98 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
CAIRO - (KCIR)
57°
Cloudy
as of 9:15 AM CST
Rel. Humidity: 100%
Dew Point: 57°F
Visibility: 1/4 Miles
Pressure: 29.97 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 200ft
Mostly Cloudy on Today Today... Mostly cloudy, with a high near 68. South southeast wind 5 to 7 mph.
Cloudy on Tonight Tonight... Cloudy, with a low around 62. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.
70% chance of rain Sunday Sunday... Showers likely, mainly after 5pm. Cloudy, with a high near 70. South southwest wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
90% chance of rain Sunday Night Sunday Night... Showers, mainly before 9pm. Low around 23. South southwest wind 16 to 18 mph becoming west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Sunny on Monday Monday... Sunny, with a high near 30. West northwest wind 11 to 17 mph, with gusts as high as 30 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 19. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 33. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 24. Calm wind becoming southwest around 5 mph after midnight.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 44. West southwest wind 5 to 8 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 26. Southwest wind around 6 mph becoming west northwest after midnight.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 38. North northwest wind 5 to 7 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 18. Light north wind.
Partly Sunny on Friday Friday... Partly sunny, with a high near 34. North wind 3 to 5 mph.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:10 AM
Sunset: 4:45 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:19 PM
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