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Old Kaskaskia, Illinois Weather Forecast
Old Kaskaskia, Illinois Weather
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Weather Forecast for Old Kaskaskia, Illinois : Randolph County
Issued: 5:01 am CST Dec 7, 2025 Latitude: 37.9489411 Longitude: -89.9220531 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of  on Today Cloudy on Tonight Clearing on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 30% chance of rain & snow on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday
High: 46°F Low: 25°F High: 37°F High: 53°F High: 53°F High: 42°F High: 30°F High: 26°F
Low: 26°F Low: 42°F Low: 30°F Low: 19°F Low: 9°F  
Mostly Cloudy Cloudy Clearing Mostly Sunny Partly Sunny Rain & Snow Mostly Sunny Mostly Sunny
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Current Conditions at
SPARTA - (KSAR)
37°
Cloudy
Mist
as of 7:15 AM CST
Rel. Humidity: 100%
Dew Point: 37°F
Visibility: 5 Miles
Pressure: 29.98 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
CARBONDALE - (KMDH)
37°
Cloudy
Mist
as of 6:52 AM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 5 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Wind Data
3 MPH
170° South
Cloud Level(s): Few at 1000ft, Solid Overcast at 5000ft
Current Conditions at
MARION - (KMWA)
37°
Mostly Cloudy
Mist
as of 6:45 AM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 5 Miles
Pressure: 29.98 in.
Flight Rule: MVFR
Wind Data
6 MPH
200° South
Cloud Level(s): Scattered at 2500ft, Broken at 4500ft
20% chance of  Today Today... A chance of sprinkles before noon. Mostly cloudy, with a high near 46. Light and variable wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

Cloudy on Tonight Tonight... Cloudy, with a low around 25. North wind 8 to 13 mph, with gusts as high as 22 mph.

Clearing on Monday Monday... Cloudy through mid morning, then gradual clearing, with a high near 37. North wind 5 to 7 mph becoming calm in the morning.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 26. Light southeast wind becoming southwest 5 to 10 mph in the evening.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 53. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 42.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 53.

20% chance of rain & snow Wednesday Night Wednesday Night... A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

30% chance of rain & snow Thursday Thursday... A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 19.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 30.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 9.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 26.

Current Radar Image


Sun Almanac for Old Kaskaskia, Illinois
Sunrise: 07:03 AM
Sunset: 4:40 PM
Civil Sunrise:06:33 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:01 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:29 AM
Astro Sunset: 6:14 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.