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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 12:26 am CST Nov 22, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
Overnight Saturday Sunday Monday Tuesday Wednesday Thanksgiving Day Friday
Mostly Cloudy on Overnight Sunny on Saturday Sunny on Sunday 30% chance of rain on Monday 20% chance of rain on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday
Low: 32°F High: 52°F High: 54°F High: 54°F High: 57°F High: 40°F High: 35°F High: 35°F
Low: 34°F Low: 34°F Low: 46°F Low: 32°F Low: 25°F Low: 21°F  
Mostly Cloudy Sunny Sunny Rain Rain Partly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
PERU - (KVYS)
39°
Clear
as of 12:55 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
7 MPH
0° North
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
39°
Clear
as of 12:55 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
36°
Clear
as of 12:52 AM CST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 8 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
41°
Cloudy
as of 12:55 AM CST
Rel. Humidity: 100%
Dew Point: 41°F
Visibility: 7 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
0° North
Cloud Level(s): Solid Overcast at 11000ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, then gradually becoming clear, with a low around 32. North wind around 5 mph.

Sunny on Saturday Saturday... Sunny, with a high near 52. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 34. Southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.

Sunny on Sunday Sunday... Sunny, with a high near 54. West northwest wind around 5 mph becoming southwest in the afternoon.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 34. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 10 mph.

30% chance of rain Monday Monday... A 30 percent chance of rain after noon. Mostly cloudy, with a high near 54.

90% chance of rain Monday Night Monday Night... Rain. Low around 46. Chance of precipitation is 90%.

20% chance of rain Tuesday Tuesday... A chance of rain. Mostly cloudy, with a high near 57.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 32.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 40.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 25.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 35.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 21.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 35.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:52 AM
Sunset: 4:30 PM
Civil Sunrise:06:22 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 05:48 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:15 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.