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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 7:36 am CST Jan 26, 2026 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Sunny on Today Increasing Clouds on Tonight Partly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Sunny on Saturday Partly Sunny on Sunday
High: 9 °F Low: 12 °F High: 17°F High: 18°F High: 16°F High: 17°F High: 23°F High: 27°F
Low: 2 °F Low: 0°F Low: 1°F Low: 3°F Low: 10°F  
Sunny Increasing Clouds Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
-2°
Feels like -17°F
Clear
as of 8:00 AM CST
Rel. Humidity: 64%
Dew Point: -11°F
Visibility: 10 Miles
Pressure: 30.35 in.
Flight Rule: VFR
Wind Data
9 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
-2°
Feels like -19°F
Clear
as of 8:15 AM CST
Rel. Humidity: 64%
Dew Point: -11°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
12 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
-6°
Feels like -22°F
Clear
as of 7:52 AM CST
Rel. Humidity: 76%
Dew Point: -11°F
Visibility: 7 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
9 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
-4°
Clear
as of 8:15 AM CST
Rel. Humidity: 70%
Dew Point: -11°F
Visibility: 10 Miles
Pressure: 30.36 in.
Flight Rule: VFR
Wind Data
8 MPH
280° West
Cloud Level(s): Clear
Sunny on Today Today... Sunny and cold, with a high near 9. Wind chill values as low as -22. West northwest wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Increasing Clouds on Tonight Tonight... Increasing clouds, with a temperature rising to around 12 by 4am. Wind chill values as low as -11. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 17. Wind chill values as low as -5. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 2. Wind chill values as low as -10. West wind 5 to 10 mph, with gusts as high as 15 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 18. West wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 0.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 16.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 1.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 17.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 3.
Sunny on Saturday Saturday... Sunny, with a high near 23.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 10.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 27.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:12 AM
Sunset: 5:04 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:33 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:40 PM
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