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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 9:40 am CST Nov 26, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

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Today Tonight Thanksgiving Day Friday Saturday Sunday Monday Tuesday
20% chance of snow on Today Mostly Cloudy on Tonight Mostly Sunny on Thanksgiving Day Sunny on Friday 100% chance of snow on Saturday 20% chance of snow on Sunday 20% chance of snow on Monday Mostly Sunny on Tuesday
High: 34°F Low: 24°F High: 33°F High: 32°F High: 32°F High: 30°F High: 19°F High: 20°F
Low: 20°F Low: 24°F Low: 28°F Low: 8°F Low: 7°F  
Snow Mostly Cloudy Mostly Sunny Sunny Snow Snow Snow Mostly Sunny
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Current Conditions at
PERU - (KVYS)
34°
Feels like 19°F
Cloudy
as of 9:55 AM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: MVFR
Wind Data
32 MPH
Gust: 45 MPH
270° West
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
34°
Feels like 20°F
Cloudy
as of 9:55 AM CST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: MVFR
Wind Data
29 MPH
Gust: 43 MPH
270° West
Cloud Level(s): Solid Overcast at 2500ft
Current Conditions at
AURORA - (KARR)
32°
Feels like 18°F
Cloudy
as of 9:52 AM CST
Rel. Humidity: 74%
Dew Point: 25°F
Visibility: 9 Miles
Pressure: 29.81 in.
Flight Rule: MVFR
Wind Data
28 MPH
Gust: 47 MPH
280° West
Cloud Level(s): Broken at 2400ft, Solid Overcast at 2900ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
34°
Feels like 19°F
Cloudy
as of 9:55 AM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: MVFR
Wind Data
32 MPH
Gust: 45 MPH
270° West
Cloud Level(s): Solid Overcast at 2900ft
20% chance of snow Today Today... Isolated snow showers before 2pm, then isolated flurries after 2pm. Cloudy, with a high near 34. Windy, with a west wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 20%.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 24. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 40 mph.
Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 33. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 20. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny on Friday Friday... Sunny, with a high near 32. West northwest wind 5 to 10 mph.
90% chance of snow Friday Night Friday Night... Snow, mainly after midnight. Low around 24. Chance of precipitation is 90%.
100% chance of snow Saturday Saturday... Snow before noon, then snow, possibly mixed with rain. High near 32. Chance of precipitation is 100%.
Rain and Snow on Saturday Night Saturday Night... Snow, possibly mixed with rain, becoming all snow after midnight. Cloudy, with a low around 28.
20% chance of snow Sunday Sunday... A chance of snow before noon. Mostly cloudy, with a high near 30.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 8.
20% chance of snow Monday Monday... A chance of snow. Partly sunny, with a high near 19.
20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 7.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 20.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:57 AM
Sunset: 4:28 PM
Civil Sunrise:06:27 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:19 AM
Astro Sunset: 6:06 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.