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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: 10:21 pm CST Dec 21, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Christmas Day Friday Saturday Sunday
Cloudy on Overnight Increasing Clouds on Monday Mostly Cloudy on Tuesday Cloudy on Wednesday Mostly Cloudy on Christmas Day Sunny on Friday Mostly Cloudy on Saturday Mostly Cloudy on Sunday
Low: 31°F High: 52°F High: 63°F High: 68°F High: 70°F High: 69°F High: 63°F High: 44°F
Low: 52°F Low: 54°F Low: 58°F Low: 59°F Low: 49°F Low: 36°F  
Cloudy Increasing Clouds Mostly Cloudy Cloudy Mostly Cloudy Sunny Mostly Cloudy Mostly Cloudy
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Current Conditions at
MARION - (KMWA)
28°
Clear
as of 12:55 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: VFR
Wind Data
5 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
27°
Clear
as of 12:52 AM CST
Rel. Humidity: 86%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
32°
Clear
as of 12:55 AM CST
Rel. Humidity: 59%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
36°
Clear
as of 12:55 AM CST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: VFR
Wind Data
5 MPH
050° Northeast
Cloud Level(s): Clear
Cloudy on Overnight Overnight... Partly cloudy, with a low around 31. Light east southeast wind.

Increasing Clouds on Monday Monday... Increasing clouds, with a high near 52. South wind 3 to 8 mph. Winds could gust as high as 22 mph.

30% chance of rain Monday Night Monday Night... A 30 percent chance of showers before midnight. Cloudy, with a steady temperature around 52. Southwest wind around 6 mph.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 63. West southwest wind 5 to 7 mph becoming calm in the afternoon.

30% chance of rain Tuesday Night Tuesday Night... A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 54. Calm wind.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 68. Light south southeast wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 58. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 70. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 59. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

Sunny on Friday Friday... Sunny, with a high near 69. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 49. Southwest wind around 7 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 63. South wind 6 to 9 mph.

20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 36. Southwest wind around 8 mph becoming north northwest after midnight.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 44. North northwest wind 6 to 9 mph.

Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:08 AM
Sunset: 4:42 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:16 PM
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