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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 2, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Morning Fog on Tonight Mostly Sunny on Wednesday Partly Sunny on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday 10% chance of  on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
Low: 21°F High: 40°F High: 31°F High: 38°F High: 42°F High: 41°F High: 37°F High: 43°F
Low: 22°F Low: 19°F Low: 24°F Low: 26°F Low: 24°F Low: 27°F  
Morning Fog Mostly Sunny Partly Sunny Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
MARION - (KMWA)
25°
Cloudy
as of 4:45 PM CST
Rel. Humidity: 79%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1500ft
Current Conditions at
CARBONDALE - (KMDH)
27°
Cloudy
as of 4:52 PM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1700ft
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
27°
Cloudy
as of 4:55 PM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1700ft
Current Conditions at
CAIRO - (KCIR)
30°
Cloudy
as of 4:55 PM CST
Rel. Humidity: 74%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1800ft
Morning Fog on Tonight Tonight... Patchy fog between 9pm and 4am. Otherwise, partly cloudy, with a low around 21. Calm wind.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 40. Calm wind becoming south southwest 5 to 7 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 22. Light and variable wind becoming north 5 to 10 mph after midnight.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 31. North wind 5 to 10 mph becoming light north northeast in the afternoon.

20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 19. Calm wind.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 38. Light and variable wind.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 24. Calm wind.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 42. Light and variable wind.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 26. Light east southeast wind.

10% chance of  Sunday Sunday... A slight chance of showers after noon. Partly sunny, with a high near 41. Light and variable wind becoming east around 6 mph in the morning.

10% chance of rain Sunday Night Sunday Night... A slight chance of showers. Mostly cloudy, with a low around 24. North wind 3 to 5 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 37. North wind around 5 mph becoming light and variable in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 27. Calm wind becoming southwest around 5 mph after midnight.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 43. Southwest wind 5 to 8 mph.

Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 06:53 AM
Sunset: 4:38 PM
Civil Sunrise:06:25 AM
Civil Sunset: 5:07 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:21 AM
Astro Sunset: 6:11 PM
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