Chester, Illinois Weather
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Weather Forecast for Chester, Illinois : Randolph County
Issued: 3:22 am CDT Jun 4, 2025 Latitude: 37.9136628 Longitude: -89.8220505 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
60% chance of thunderstorms on Today 70% chance of thunderstorms on Tonight 60% chance of thunderstorms on Thursday 80% chance of thunderstorms on Friday 30% chance of thunderstorms on Saturday 30% chance of rain on Sunday 30% chance of rain on Monday Sunny on Tuesday
High: 83°F Low: 68°F High: 80°F High: 81°F High: 80°F High: 83°F High: 82°F High: 82°F
Low: 68°F Low: 65°F Low: 62°F Low: 64°F Low: 61°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Rain Rain Sunny
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Current Conditions at
SPARTA - (KSAR)
75°
Cloudy
as of 3:55 AM CDST
Rel. Humidity: 78%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
9 MPH
190° South
Cloud Level(s): Scattered at 4700ft, Broken at 6000ft, Solid Overcast at 7000ft
Current Conditions at
CARBONDALE - (KMDH)
75°
Clear
as of 3:52 AM CDST
Rel. Humidity: 64%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
14 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
FARMINGTON ARPT - (KFAM)
70°
Partly Cloudy
as of 3:56 AM CDST
Rel. Humidity: 88%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
6 MPH
190° South
Cloud Level(s): Scattered at 8000ft
Current Conditions at
MARION - (KMWA)
72°
Partly Cloudy
as of 3:55 AM CDST
Rel. Humidity: 68%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
7 MPH
200° South
Cloud Level(s): Scattered at 4500ft, Scattered at 6000ft
60% chance of thunderstorms Today Today... A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
70% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Cloudy, with a low around 68. Southwest wind around 6 mph becoming light and variable. Chance of precipitation is 70%.
60% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 80. Light and variable wind becoming northwest around 6 mph in the morning. Chance of precipitation is 60%.
30% chance of thunderstorms Thursday Night Thursday Night... A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Light south wind.
80% chance of thunderstorms Friday Friday... Showers and possibly a thunderstorm. High near 81. Southwest wind 3 to 7 mph. Chance of precipitation is 80%.
40% chance of thunderstorms Friday Night Friday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
30% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 62.
30% chance of rain Sunday Sunday... A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 83.
20% chance of rain Sunday Night Sunday Night... A 20 percent chance of showers after 1am. Mostly clear, with a low around 64.
30% chance of rain Monday Monday... A 30 percent chance of showers. Sunny, with a high near 82.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 61.
Sunny on Tuesday Tuesday... Sunny, with a high near 82.
Current Radar Image


Sun Almanac for Chester, Illinois
Sunrise: 05:38 AM
Sunset: 8:18 PM
Civil Sunrise:05:07 AM
Civil Sunset: 8:49 PM
Nautical Sunrise: 04:28 AM
Nautical Sunset: 9:28 PM
Astro Sunrise: 03:44 AM
Astro Sunset: 10:11 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.