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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 1:36 pm CST Nov 24, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thanksgiving Day Friday Saturday Sunday
20% chance of rain on This Afternoon 70% chance of rain on Tonight 30% chance of rain on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday Snow on Saturday 20% chance of rain & snow on Sunday
High: 48°F Low: 45°F High: 53°F High: 37°F High: 33°F High: 32°F High: 33°F High: 35°F
Low: 33°F Low: 24°F Low: 18°F Low: 24°F Low: 26°F  
Rain Rain Rain Mostly Cloudy Mostly Sunny Mostly Sunny Snow Rain & Snow
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Current Conditions at
PERU - (KVYS)
46°
Feels like 41°F
Cloudy
Mist
as of 1:15 PM CST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 3 Miles
Pressure: 30.00 in.
Flight Rule: LIFR
Wind Data
12 MPH
160° South
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
48°
Feels like 42°F
Clear
as of 1:15 PM CST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
13 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
48°
Feels like 43°F
Clear
Haze
as of 12:52 PM CST
Rel. Humidity: 81%
Dew Point: 43°F
Visibility: 5 Miles
Pressure: 30.00 in.
Flight Rule: MVFR
Wind Data
10 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
46°
Cloudy
as of 1:15 PM CST
Rel. Humidity: 87%
Dew Point: 43°F
Visibility: 7 Miles
Pressure: 30.02 in.
Flight Rule: IFR
Wind Data
5 MPH
160° South
Cloud Level(s): Solid Overcast at 800ft
20% chance of rain This Afternoon This Afternoon... A 20 percent chance of rain after 3pm. Cloudy, with a high near 48. South wind 5 to 10 mph, with gusts as high as 15 mph.
70% chance of rain Tonight Tonight... Rain likely, mainly after 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 45. South southeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
30% chance of rain Tuesday Tuesday... A chance of rain with a slight chance of drizzle before noon, then a slight chance of rain after 3pm. Areas of fog before noon. Otherwise, cloudy, with a high near 53. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
60% chance of rain Tuesday Night Tuesday Night... Rain likely before midnight. Mostly cloudy, with a low around 33. Breezy, with a west wind 5 to 15 mph increasing to 15 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 37. Windy, with a west wind 25 to 30 mph, with gusts as high as 40 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 24. Blustery.
Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 33. Breezy.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 18.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 32.
Snow on Friday Night Friday Night... Snow likely, mainly after midnight. Mostly cloudy, with a low around 24.
Snow on Saturday Saturday... Snow likely. Cloudy, with a high near 33.
20% chance of snow Saturday Night Saturday Night... A chance of snow. Cloudy, with a low around 26.
20% chance of rain & snow Sunday Sunday... A chance of rain and snow. Mostly cloudy, with a high near 35.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:55 AM
Sunset: 4:29 PM
Civil Sunrise:06:24 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 05:50 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:17 AM
Astro Sunset: 6:07 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.