Arthur, Illinois Weather
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Weather Forecast for Arthur, Illinois : Douglas County
Issued: 8:41 pm CDT Jun 21, 2025 Latitude: 39.7147552 Longitude: -88.472278 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear on Tonight Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday 30% chance of thunderstorms on Thursday 20% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday
Low: 75°F High: 94°F High: 96°F High: 95°F High: 93°F High: 93°F High: 90°F High: 91°F
Low: 75°F Low: 74°F Low: 74°F Low: 74°F Low: 73°F Low: 72°F  
Clear Sunny Sunny Mostly Sunny Mostly Sunny Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
MATTOON - (KMTO)
86°
Feels like 91°F
Clear
as of 8:53 PM CDST
Rel. Humidity: 62%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
10 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
DECATUR - (KDEC)
88°
Feels like 95°F
Clear
as of 8:54 PM CDST
Rel. Humidity: 62%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
14 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
CHAMPAIGN - (KCMI)
84°
Clear
as of 8:53 PM CDST
Rel. Humidity: 70%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
12 MPH
180° South
Cloud Level(s): Clear
Clear on Tonight Tonight... Clear, with a low around 75. South southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Sunny on Sunday Sunday... Sunny, with a high near 94. Heat index values as high as 102. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Clear on Sunday Night Sunday Night... Clear, with a low around 75. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Sunny on Monday Monday... Sunny and hot, with a high near 96. South southwest wind 7 to 10 mph, with gusts as high as 16 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 74. South southwest wind 6 to 8 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny and hot, with a high near 95. South southwest wind around 7 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 74. South southwest wind around 6 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 93.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 74.
30% chance of thunderstorms Thursday Thursday... A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.
20% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 73.
20% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 72.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Sun Almanac for Arthur, Illinois
Sunrise: 05:26 AM
Sunset: 8:25 PM
Civil Sunrise:04:54 AM
Civil Sunset: 8:58 PM
Nautical Sunrise: 04:12 AM
Nautical Sunset: 9:39 PM
Astro Sunrise: 03:24 AM
Astro Sunset: 10:28 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.