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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: 8:07 pm CST Jan 4, 2026 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Tonight Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Rain on Thursday 20% chance of thunderstorms on Friday Sunny on Saturday Mostly Sunny on Sunday
Low: 32°F High: 55°F High: 63°F High: 60°F High: 61°F High: 57°F High: 48°F High: 41°F
Low: 46°F Low: 39°F Low: 48°F Low: 48°F Low: 35°F Low: 26°F  
Mostly Clear Sunny Mostly Sunny Partly Sunny Rain Thunderstorms Sunny Mostly Sunny
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Current Conditions at
MARION - (KMWA)
37°
Clear
as of 8:55 PM CST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
7 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
37°
Clear
as of 8:52 PM CST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
6 MPH
140° Southeast
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
34°
Clear
as of 8:55 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
32°
Clear
as of 8:55 PM CST
Rel. Humidity: 80%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 32. Calm wind becoming south southwest around 5 mph after midnight.

Sunny on Monday Monday... Sunny, with a high near 55. South southwest wind 5 to 9 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 46. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 63. South southwest wind 5 to 9 mph becoming light west southwest in the afternoon.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 39. Calm wind.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 60. Light and variable wind.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 48. Calm wind becoming south around 6 mph after midnight.

Rain on Thursday Thursday... Showers likely. Mostly cloudy, with a high near 61. South southwest wind 6 to 8 mph.

Rain on Thursday Night Thursday Night... Showers likely, mainly before midnight. Mostly cloudy, with a low around 48. South wind around 7 mph.

20% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms. Partly sunny, with a high near 57. South wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.

10% chance of rain Friday Night Friday Night... A slight chance of showers. Partly cloudy, with a low around 35. West wind around 7 mph.

Sunny on Saturday Saturday... Sunny, with a high near 48. West wind 6 to 10 mph, with gusts as high as 18 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 26. West northwest wind around 6 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41. West northwest wind 5 to 8 mph.

Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:11 AM
Sunset: 4:52 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:25 PM
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