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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 10:36 am CST Nov 29, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

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Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
100% chance of blowing snow on Today 100% chance of blowing snow on Tonight 30% chance of blowing snow on Sunday 50% chance of snow on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday Mostly Cloudy on Friday
High: 31°F Low: 24°F High: 28°F High: 23°F High: 21°F High: 29°F High: 15°F High: 28°F
Low: 7 °F Low: 13°F Low: 13°F Low: 3°F Low: 4°F  
Blowing Snow Blowing Snow Blowing Snow Snow Partly Sunny Mostly Cloudy Mostly Sunny Mostly Cloudy
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Current Conditions at
PERU - (KVYS)
30°
Feels like 18°F
Cloudy
Light Snow
as of 10:55 AM CST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 3/4 Miles
Pressure: 30.18 in.
Flight Rule: IFR
Wind Data
18 MPH
Gust: 25 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
28°
Feels like 17°F
Cloudy
Snow
as of 10:55 AM CST
Rel. Humidity: 100%
Dew Point: 28°F
Visibility: 1/2 Miles
Pressure: 30.23 in.
Flight Rule: IFR
Wind Data
15 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
AURORA - (KARR)
28°
Feels like 17°F
Clear
Snow Freezing Fog
as of 10:52 AM CST
Rel. Humidity: 92%
Dew Point: 27°F
Visibility: 1/4 Miles
Pressure: 30.23 in.
Flight Rule: IFR
Wind Data
13 MPH
130° Southeast
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
28°
Feels like 14°F
Cloudy
Light Snow
as of 10:55 AM CST
Rel. Humidity: 92%
Dew Point: 27°F
Visibility: 1 1/4 Miles
Pressure: 30.20 in.
Flight Rule: IFR
Wind Data
23 MPH
Gust: 30 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 900ft
100% chance of blowing snow Today Today... Snow. The snow could be heavy at times. Patchy blowing snow after noon. High near 31. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 6 to 10 inches possible.
100% chance of blowing snow Tonight Tonight... Snow before 9pm, then snow, possibly mixed with rain between 9pm and 1am, then snow likely after 1am. Patchy blowing snow before 7pm, then patchy blowing snow after 3am. Low around 24. Breezy, with a southeast wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
30% chance of blowing snow Sunday Sunday... A 30 percent chance of snow, mainly before noon. Patchy blowing snow before 3pm. Mostly cloudy, with a high near 28. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 7. West northwest wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 15 mph.
50% chance of snow Monday Monday... A 50 percent chance of snow after noon. Cloudy, with a high near 23. Calm wind.
60% chance of snow Monday Night Monday Night... Snow likely, mainly before midnight. Mostly cloudy, with a low around 13. Chance of precipitation is 60%.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 21.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 13.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 29.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 3.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 15.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 4.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 28.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:00 AM
Sunset: 4:27 PM
Civil Sunrise:06:30 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 05:55 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:22 AM
Astro Sunset: 6:05 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.