Reynoldsville, Illinois Weather
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Weather Forecast for Reynoldsville, Illinois : Union County
Issued: 12:46 pm CDT Sep 16, 2025 Latitude: 37.3672721 Longitude: -89.3950888 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday 20% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday 10% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday
High: 94°F Low: 65°F High: 94°F High: 94°F High: 91°F High: 86°F High: 86°F High: 86°F
Low: 63°F Low: 66°F Low: 65°F Low: 65°F Low: 65°F  
Sunny Mostly Clear Sunny Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
CAPE GIRARDEAU - (KCGI)
90°
Feels like 91°F
Clear
as of 12:53 PM CDST
Rel. Humidity: 43%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
90°
Feels like 93°F
Clear
as of 12:55 PM CDST
Rel. Humidity: 49%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
91°
Feels like 92°F
Mostly Clear
as of 12:52 PM CDST
Rel. Humidity: 38%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Few at 5500ft
Sunny on This Afternoon This Afternoon... Sunny, with a high near 94. Light north northeast wind.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 65. Light east northeast wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 63. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 94. 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 slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers, with thunderstorms also possible 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 86. 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.
10% chance of thunderstorms Sunday Sunday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming south 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. South wind around 5 mph becoming calm in the evening.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south 5 to 7 mph in the morning.
Sun Almanac for Reynoldsville, Illinois
Sunrise: 06:41 AM
Sunset: 7:04 PM
Civil Sunrise:06:15 AM
Civil Sunset: 7:30 PM
Nautical Sunrise: 05:44 AM
Nautical Sunset: 8:00 PM
Astro Sunrise: 05:13 AM
Astro Sunset: 8:32 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.