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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 1:46 am CST Nov 27, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
Overnight Thanksgiving Day Friday Saturday Sunday Monday Tuesday Wednesday
Cloudy on Overnight Mostly Cloudy on Thanksgiving Day Sunny on Friday 100% chance of snow on Saturday 20% chance of snow on Sunday Partly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday
Low: 26°F High: 34°F High: 32°F High: 31°F High: 28°F High: 17°F High: 20°F High: 30°F
Low: 21°F Low: 22°F Low: 25°F Low: 5°F Low: 6°F Low: 10°F  
Cloudy Mostly Cloudy Sunny Snow Snow Partly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
PERU - (KVYS)
30°
Feels like 18°F
Cloudy
as of 1:55 AM CST
Rel. Humidity: 63%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 24 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
30°
Feels like 17°F
Cloudy
as of 1:55 AM CST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: MVFR
Wind Data
22 MPH
Gust: 28 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 2900ft
Current Conditions at
AURORA - (KARR)
28°
Feels like 14°F
Cloudy
as of 1:52 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: MVFR
Wind Data
24 MPH
Gust: 33 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 3000ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
28°
Feels like 14°F
Cloudy
as of 1:55 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: MVFR
Wind Data
22 MPH
Gust: 29 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 2500ft
Cloudy on Overnight Overnight... Cloudy, with a low around 26. West northwest wind around 15 mph, with gusts as high as 30 mph.

Mostly Cloudy on Thanksgiving Day Thanksgiving Day... Mostly cloudy, with a high near 34. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 21. West northwest wind 10 to 15 mph.

Sunny on Friday Friday... Sunny, with a high near 32. West northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 15 mph.

60% chance of snow Friday Night Friday Night... Snow likely after midnight. Mostly cloudy, with a low around 22. Calm wind becoming southeast around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

100% chance of snow Saturday Saturday... Snow. The snow could be heavy at times. High near 31. Chance of precipitation is 100%.

100% chance of snow Saturday Night Saturday Night... Snow. Low around 25. Chance of precipitation is 100%.

20% chance of snow Sunday Sunday... A chance of snow before noon. Mostly cloudy, with a high near 28.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 5.

Partly Sunny on Monday Monday... Partly sunny, with a high near 17.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 6.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 20.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 10.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 30.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:58 AM
Sunset: 4:28 PM
Civil Sunrise:06:28 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 05:53 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:20 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.