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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: 3:16 pm CST Dec 14, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Clear on Tonight Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Thunderstorms on Thursday Sunny on Friday Partly Sunny on Saturday 10% chance of rain on Sunday
Low: 10°F High: 34°F High: 45°F High: 53°F High: 58°F High: 38°F High: 55°F High: 51°F
Low: 23°F Low: 35°F Low: 45°F Low: 22°F Low: 29°F Low: 40°F  
Clear Sunny Sunny Mostly Sunny Thunderstorms Sunny Partly Sunny Rain
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Current Conditions at
MARION - (KMWA)
16°
Clear
as of 4:55 PM CST
Rel. Humidity: 47%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.71 in.
Flight Rule: VFR
Wind Data
6 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
16°
Clear
as of 4:52 PM CST
Rel. Humidity: 47%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.71 in.
Flight Rule: VFR
Wind Data
6 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
18°
Clear
as of 5:15 PM CST
Rel. Humidity: 44%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.70 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
18°
Clear
as of 5:15 PM CST
Rel. Humidity: 52%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.72 in.
Flight Rule: VFR
Wind Data
6 MPH
350° North
Cloud Level(s): Clear
Clear on Tonight Tonight... Clear, with a low around 10. Calm wind.
Sunny on Monday Monday... Sunny, with a high near 34. Light south wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 23. South southwest wind 5 to 7 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 45. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 35. South southwest wind 5 to 8 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 53. South southwest wind 5 to 7 mph.
50% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 45. South wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Thunderstorms on Thursday Thursday... Showers and possibly a thunderstorm before noon, then showers likely. Partly sunny, with a high near 58. South wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 22. Northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Sunny on Friday Friday... Sunny, with a high near 38. Light and variable wind becoming south around 6 mph in the afternoon.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 29. Light southeast wind becoming south 5 to 10 mph in the evening.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 55. South wind 9 to 13 mph, with gusts as high as 23 mph.
20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 40. South southwest wind 6 to 8 mph becoming northwest after midnight.
10% chance of rain Sunday Sunday... A slight chance of showers. Mostly cloudy, with a high near 51. North wind around 7 mph.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:03 AM
Sunset: 4:39 PM
Civil Sunrise:06:34 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:01 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:29 AM
Astro Sunset: 6:13 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.