Mount Pleasant, Illinois Weather
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Weather Forecast for Mount Pleasant, Illinois : Union County
Issued: 5:31 am CDT Sep 16, 2025 Latitude: 37.4519953 Longitude: -89.0736863 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Morning Fog on Today Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday 20% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday 20% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday
High: 92°F Low: 66°F High: 92°F High: 93°F High: 91°F High: 84°F High: 85°F High: 85°F
Low: 64°F Low: 66°F Low: 65°F Low: 65°F Low: 65°F  
Morning Fog Mostly Clear Sunny Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
MARION - (KMWA)
64°
Clear
as of 6:45 AM CDST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
63°
Clear
Mist
as of 7:06 AM CDST
Rel. Humidity: 100%
Dew Point: 63°F
Visibility: 2 1/2 Miles
Pressure: 30.13 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
66°
Clear
as of 7:15 AM CDST
Rel. Humidity: 100%
Dew Point: 66°F
Visibility: 7 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
64°
Clear
as of 7:15 AM CDST
Rel. Humidity: 100%
Dew Point: 64°F
Visibility: 5 Miles
Pressure: 30.13 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Morning Fog on Today Today... Patchy fog before 8am. Otherwise, sunny, with a high near 92. Light and variable wind.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 66. Calm wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 92. Light northeast wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 64. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 93. Light south wind.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 66. Calm wind.
20% chance of thunderstorms Friday Friday... A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the afternoon.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. Calm wind.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon.
10% chance of rain Saturday Night Saturday Night... A slight chance of showers. Partly cloudy, with a low around 65. Calm wind.
20% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Calm wind becoming south southwest 5 to 7 mph in the morning.
20% chance of rain Sunday Night Sunday Night... A chance of showers. Partly cloudy, with a low around 65. Light south southeast wind.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming south 5 to 7 mph in the morning.
Current Radar Image


Sun Almanac for Mount Pleasant, Illinois
Sunrise: 06:40 AM
Sunset: 7:02 PM
Civil Sunrise:06:13 AM
Civil Sunset: 7:28 PM
Nautical Sunrise: 05:43 AM
Nautical Sunset: 7:59 PM
Astro Sunrise: 05:11 AM
Astro Sunset: 8:31 PM
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