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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 11:51 am CST Dec 19, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Christmas Day
Mostly Sunny on Today Cloudy on Tonight Partly Sunny on Saturday Sunny on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Christmas Day
High: 24°F Low: 29 °F High: 41°F High: 29°F High: 39°F High: 48°F High: 51°F High: 58°F
Low: 18°F Low: 23°F Low: 35°F Low: 34°F Low: 46°F  
Mostly Sunny Cloudy Partly Sunny Sunny Mostly Cloudy Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
PERU - (KVYS)
16°
Feels like 1°F
Clear
as of 11:35 AM CST
Rel. Humidity: 61%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 18 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
16°
Feels like 1°F
Clear
as of 11:35 AM CST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 21 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
12°
Feels like -4°F
Clear
as of 10:52 AM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 8 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 26 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
16°
Feels like 0°F
Clear
as of 11:35 AM CST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
15 MPH
300° Northwest
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 24. Wind chill values as low as -3. West northwest wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a temperature rising to around 29 by 5am. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 41. South wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 18. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny on Sunday Sunday... Sunny, with a high near 29. Northwest wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 15 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 23.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 39.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 35.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 48.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 51.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 46.
Partly Sunny on Christmas Day Christmas Day... Partly sunny, with a high near 58.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:17 AM
Sunset: 4:28 PM
Civil Sunrise:06:46 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:08 PM
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