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Unionville, Illinois Weather Forecast
Unionville, Illinois Weather
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Weather Forecast for Unionville, Illinois : Massac County
Issued: 3:16 am CST Jan 21, 2026 Latitude: 37.1222782 Longitude: -88.5467121 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
50% chance of snow on Overnight 60% chance of freezing rain on Wednesday Mostly Sunny on Thursday Mostly Cloudy on Friday Snow on Saturday 20% chance of snow on Sunday Sunny on Monday Sunny on Tuesday
Low: 35°F High: 45°F High: 41°F High: 26°F High: 16°F High: 21°F High: 22°F High: 29°F
Low: 25°F Low: 21°F Low: 7 °F Low: 11°F Low: 5 °F Low: 4 °F  
Snow Freezing Rain Mostly Sunny Mostly Cloudy Snow Snow Sunny Sunny
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Current Conditions at
PADUCAH - (KPAH)
37°
Feels like 30°F
Cloudy
as of 2:53 AM CST
Rel. Humidity: 44%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
9 MPH
Gust: 23 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 4500ft
Current Conditions at
CAIRO - (KCIR)
37°
Cloudy
as of 3:35 AM CST
Rel. Humidity: 64%
Dew Point: 27°F
Visibility: 3 Miles
Pressure: 30.22 in.
Flight Rule: MVFR
Wind Data
5 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 3200ft
Current Conditions at
MARION - (KMWA)
36°
Feels like 26°F
Cloudy
as of 3:35 AM CST
Rel. Humidity: 40%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
14 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 8000ft
50% chance of snow Overnight Overnight... A 50 percent chance of snow showers after 4am. Mostly cloudy, with a steady temperature around 35. South wind around 6 mph.
60% chance of freezing rain Wednesday Wednesday... Freezing rain likely, possibly mixed with drizzle before 9am, then a chance of rain showers between 9am and noon. Cloudy, with a high near 45. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no ice accumulation expected.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 25. Light and variable wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 41. Calm wind.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 21. Calm wind becoming north 5 to 7 mph after midnight.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 26. North wind 8 to 11 mph, with gusts as high as 21 mph.
30% chance of snow Friday Night Friday Night... A 30 percent chance of snow showers, mainly after midnight. Cloudy, with a low around 7. North northeast wind around 8 mph, with gusts as high as 18 mph.
Snow on Saturday Saturday... Snow showers likely, mainly after noon. Cloudy, with a high near 16. Northeast wind 7 to 9 mph, with gusts as high as 18 mph.
Snow on Saturday Night Saturday Night... Snow showers, mainly before midnight. Cloudy, with a low around 11. North northeast wind around 6 mph.
20% chance of snow Sunday Sunday... A chance of snow showers before noon. Mostly cloudy, with a high near 21. North wind 3 to 6 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 5. Calm wind.
Sunny on Monday Monday... Sunny, with a high near 22. Calm wind becoming west northwest around 5 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 4. Calm wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 29. Calm wind becoming southwest around 6 mph.
Current Radar Image


Sun Almanac for Unionville, Illinois
Sunrise: 07:04 AM
Sunset: 5:07 PM
Civil Sunrise:06:36 AM
Civil Sunset: 5:35 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:38 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.