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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 11:36 am CST Nov 30, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
10% chance of blowing snow on This Afternoon Mostly Cloudy on Tonight 90% chance of snow on Monday Partly Sunny on Tuesday 20% chance of snow on Wednesday Sunny on Thursday Partly Sunny on Friday Mostly Cloudy on Saturday
High: 29°F Low: 9 °F High: 26°F High: 23°F High: 31°F High: 11°F High: 22°F High: 30°F
Low: 14°F Low: 16°F Low: 2°F Low: -5°F Low: 14°F  
Blowing Snow Mostly Cloudy Snow Partly Sunny Snow Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
PERU - (KVYS)
28°
Feels like 17°F
Cloudy
as of 1:35 PM CST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: MVFR
Wind Data
15 MPH
Gust: 22 MPH
270° West
Cloud Level(s): Solid Overcast at 2400ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
28°
Feels like 17°F
Cloudy
as of 1:35 PM CST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: MVFR
Wind Data
14 MPH
280° West
Cloud Level(s): Broken at 2500ft, Solid Overcast at 3100ft
Current Conditions at
AURORA - (KARR)
28°
Feels like 16°F
Cloudy
as of 12:52 PM CST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 9 Miles
Pressure: 30.21 in.
Flight Rule: MVFR
Wind Data
17 MPH
340° North
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
27°
Feels like 12°F
Cloudy
as of 1:35 PM CST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: MVFR
Wind Data
22 MPH
270° West
Cloud Level(s): Solid Overcast at 2100ft
10% chance of blowing snow This Afternoon This Afternoon... A slight chance of flurries before 5pm. Patchy blowing snow before 3pm. Cloudy, with a high near 29. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 9. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

90% chance of snow Monday Monday... Snow after noon. High near 26. Calm wind. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

90% chance of snow Monday Night Monday Night... Snow, mainly before midnight. Low around 14. Calm wind becoming west northwest around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 23. West northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 10 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 16.

20% chance of snow Wednesday Wednesday... A 20 percent chance of snow after noon. Mostly cloudy, with a high near 31.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 2.

Sunny on Thursday Thursday... Sunny, with a high near 11.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around -5.

Partly Sunny on Friday Friday... Partly sunny, with a high near 22.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 14.

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

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:01 AM
Sunset: 4:27 PM
Civil Sunrise:06:31 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 05:56 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:23 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.