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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: 10:57 am CST Jan 12, 2026 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Sunny on Today Mostly Clear on Tonight Sunny on Tuesday 20% chance of rain on Wednesday Sunny on Thursday Partly Sunny on Friday Partly Sunny on Saturday Sunny on Sunday
High: 50°F Low: 33°F High: 58°F High: 45°F High: 32°F High: 43°F High: 34°F High: 29°F
Low: 41°F Low: 19°F Low: 23°F Low: 23°F Low: 13°F  
Sunny Mostly Clear Sunny Rain Sunny Partly Sunny Partly Sunny Sunny
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Current Conditions at
METROPOLIS MUNI ARP - (KM30)
39°
Clear
as of 10:35 AM CST
Rel. Humidity: 48%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
41°
Feels like 34°F
Clear
as of 10:35 AM CST
Rel. Humidity: 52%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 18 MPH
220° Southwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 50. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 33. South southwest wind around 7 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 58. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.

40% chance of rain Tuesday Night Tuesday Night... A 40 percent chance of showers, mainly after midnight. Increasing clouds, with a low around 41. Southwest wind 5 to 8 mph becoming light and variable after midnight.

20% chance of rain Wednesday Wednesday... A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 19. North northwest wind 8 to 14 mph, with gusts as high as 25 mph.

Sunny on Thursday Thursday... Sunny, with a high near 32. North northwest wind 5 to 7 mph becoming light and variable in the afternoon.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 23. Calm wind becoming south southwest 5 to 8 mph in the evening.

Partly Sunny on Friday Friday... Partly sunny, with a high near 43. West wind 7 to 13 mph, with gusts as high as 22 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 23. West wind around 7 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 34. West wind 6 to 10 mph, with gusts as high as 20 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 13. West northwest wind around 7 mph.

Sunny on Sunday Sunday... Sunny, with a high near 29. West northwest wind 6 to 10 mph.

Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:10 AM
Sunset: 4:59 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:28 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 6:00 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:31 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.