Allen, Illinois Weather
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Weather Forecast for Allen, Illinois : Mason County
Issued: 10:57 pm CDT May 31, 2025 Latitude: 40.3050423 Longitude: -89.649551 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Cloudy on Overnight Mostly Sunny on Sunday Sunny on Monday 30% chance of on Tuesday 70% chance of thunderstorms on Wednesday 60% chance of rain on Thursday 20% chance of on Friday 20% chance of on Saturday
Low: 54°F High: 82°F High: 87°F High: 88°F High: 80°F High: 75°F High: 80°F High: 81°F
Low: 57°F Low: 67°F Low: 68°F Low: 62°F Low: 59°F Low: 60°F  
Cloudy Mostly Sunny Sunny Partly Sunny Thunderstorms Rain Partly Sunny Partly Sunny
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Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
61°
Mostly Cloudy
as of 11:55 PM CDST
Rel. Humidity: 41%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
6 MPH
080° East
Cloud Level(s): Scattered at 9000ft, Broken at 10000ft
Current Conditions at
PEORIA - (KPIA)
61°
Mostly Cloudy
as of 11:54 PM CDST
Rel. Humidity: 38%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
14 MPH
090° East
Cloud Level(s): Broken at 9500ft
Current Conditions at
SPRINGFIELD - (KSPI)
64°
Clear
as of 11:52 PM CDST
Rel. Humidity: 39%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
9 MPH
Gust: 22 MPH
100° East
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
55°
Mostly Cloudy
as of 11:56 PM CDST
Rel. Humidity: 32%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
9 MPH
100° East
Cloud Level(s): Broken at 8000ft
Cloudy on Overnight Overnight... Partly cloudy, with a low around 54. East southeast wind 5 to 8 mph, with gusts as high as 17 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 82. Light and variable wind becoming south southeast around 5 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 57. Calm wind becoming south southeast around 5 mph after midnight.
Sunny on Monday Monday... Sunny, with a high near 87. South wind 5 to 10 mph, with gusts as high as 18 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 67. South wind around 10 mph, with gusts as high as 21 mph.
30% chance of Tuesday Tuesday... A 30 percent chance of showers after 1pm. Partly sunny, with a high near 88. South southwest wind 10 to 16 mph, with gusts as high as 28 mph.
60% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
70% chance of thunderstorms Wednesday Wednesday... Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
60% chance of rain Wednesday Night Wednesday Night... Showers likely. Cloudy, with a low around 62. Chance of precipitation is 60%.
60% chance of rain Thursday Thursday... Showers likely. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
20% chance of rain Thursday Night Thursday Night... A chance of showers. Mostly cloudy, with a low around 59.
20% chance of Friday Friday... A chance of showers. Partly sunny, with a high near 80.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 60.
20% chance of Saturday Saturday... A chance of showers. Partly sunny, with a high near 81.
Current Radar Image


Sun Almanac for Allen, Illinois
Sunrise: 05:31 AM
Sunset: 8:22 PM
Civil Sunrise:04:58 AM
Civil Sunset: 8:55 PM
Nautical Sunrise: 04:17 AM
Nautical Sunset: 9:36 PM
Astro Sunrise: 03:30 AM
Astro Sunset: 10:23 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.