url:
Mount Pleasant, Illinois Weather Forecast
Mount Pleasant, Illinois Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

Change location by the zip code or city,state: or search for other weather forecast locations in Illinois by name.
Weather Forecast for Mount Pleasant, Illinois : Union County
Issued: 3:16 pm CST Jan 16, 2026 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday M.L.King Day Tuesday Wednesday Thursday
30% chance of rain on This Afternoon 20% chance of rain & snow on Tonight Partly Sunny on Saturday Sunny on Sunday Mostly Sunny on M.L.King Day Sunny on Tuesday Mostly Sunny on Wednesday 20% chance of rain on Thursday
High: 44°F Low: 25°F High: 32°F High: 31°F High: 26°F High: 35°F High: 47°F High: 38°F
Low: 14°F Low: 18°F Low: 11°F Low: 26°F Low: 28°F  
Rain Rain & Snow Partly Sunny Sunny Mostly Sunny Sunny Mostly Sunny Rain
-
Current Conditions at
MARION - (KMWA)
37°
Cloudy
as of 2:47 PM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
6 MPH
220° Southwest
Cloud Level(s): Scattered at 4100ft, Scattered at 4900ft, Solid Overcast at 5500ft
Current Conditions at
CARBONDALE - (KMDH)
39°
Mostly Cloudy
as of 2:52 PM CST
Rel. Humidity: 80%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
8 MPH
210° Southwest
Cloud Level(s): Broken at 12000ft
Current Conditions at
CAIRO - (KCIR)
46°
Feels like 41°F
Cloudy
as of 2:55 PM CST
Rel. Humidity: 56%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
10 MPH
290° West
Cloud Level(s): Scattered at 4000ft, Broken at 4600ft, Solid Overcast at 6500ft
30% chance of rain This Afternoon This Afternoon... A 30 percent chance of showers, mainly before 4pm. Mostly cloudy, with a high near 44. West southwest wind around 8 mph.

20% chance of rain & snow Tonight Tonight... A slight chance of rain showers before 10pm, then a slight chance of snow showers between 10pm and 3am. Mostly cloudy, with a low around 25. West southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 32. West northwest 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 14. West northwest wind around 6 mph becoming calm in the evening.

Sunny on Sunday Sunday... Sunny, with a high near 31. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 18. South southwest wind 6 to 8 mph becoming north northwest after midnight.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 26. North northwest wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 20 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 11. Calm wind.

Sunny on Tuesday Tuesday... Sunny, with a high near 35. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 26. South southwest wind around 9 mph, with gusts as high as 18 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 47. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.

10% chance of rain Wednesday Night Wednesday Night... A slight chance of showers. Partly cloudy, with a low around 28. South southwest wind around 6 mph becoming north northwest after midnight.

20% chance of rain Thursday Thursday... A chance of showers. Mostly sunny, with a high near 38. North northwest wind 5 to 7 mph.

Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 07:09 AM
Sunset: 5:03 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 6:04 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:35 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.