Unionville, Illinois Weather
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Weather Forecast for Unionville, Illinois : Massac County
Issued: 1:31 pm CDT Sep 18, 2025 Latitude: 37.1222782 Longitude: -88.5467121 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on This Afternoon Mostly Clear on Tonight Mostly Sunny on Friday 20% chance of thunderstorms on Saturday 30% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday 20% chance of thunderstorms on Tuesday 20% chance of thunderstorms on Wednesday
High: 94°F Low: 63°F High: 91°F High: 91°F High: 89°F High: 86°F High: 83°F High: 81°F
Low: 64°F Low: 66°F Low: 66°F Low: 65°F Low: 63°F  
Sunny Mostly Clear Mostly Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
METROPOLIS MUNI ARP - (KM30)
91°
Clear
as of 1:15 PM CDST
Rel. Humidity: 27%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
PADUCAH - (KPAH)
91°
Clear
as of 12:53 PM CDST
Rel. Humidity: 31%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
93°
Clear
as of 1:15 PM CDST
Rel. Humidity: 34%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MARION - (KMWA)
91°
Clear
as of 12:47 PM CDST
Rel. Humidity: 29%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
6 MPH
220° Southwest
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 94. Light southwest wind.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 63. Calm wind.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 91. Calm wind becoming south southeast around 5 mph in the afternoon.
30% chance of thunderstorms Friday Night Friday Night... A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%.
20% chance of thunderstorms Saturday Saturday... A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 91. Calm wind. Chance of precipitation is 20%.
20% chance of thunderstorms Saturday Night Saturday Night... A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.
30% chance of thunderstorms Sunday Sunday... A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon.
20% chance of thunderstorms Sunday Night Sunday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Light south wind.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 3 to 7 mph.
20% chance of thunderstorms Monday Night Monday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light south wind.
20% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning.
20% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind.
20% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms. Partly sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.
Current Radar Image


Sun Almanac for Unionville, Illinois
Sunrise: 06:39 AM
Sunset: 6:57 PM
Civil Sunrise:06:13 AM
Civil Sunset: 7:23 PM
Nautical Sunrise: 05:43 AM
Nautical Sunset: 7:54 PM
Astro Sunrise: 05:12 AM
Astro Sunset: 8:25 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.