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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 9:36 pm CST Jan 26, 2026 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Blowing Snow on Tonight 20% chance of blowing snow on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday
Low: 11 °F High: 16°F High: 18°F High: 14°F High: 15°F High: 22°F High: 25°F High: 31°F
Low: 1 °F Low: 1 °F Low: 0°F Low: 4°F Low: 5°F Low: 14°F  
Blowing Snow Blowing Snow Mostly Sunny Mostly Sunny Mostly Sunny Sunny Mostly Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
10°
Feels like -7°F
Clear
as of 9:20 PM CST
Rel. Humidity: 60%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 23 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
Feels like -10°F
Clear
as of 9:15 PM CST
Rel. Humidity: 65%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
15 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
Feels like -12°F
Clear
as of 8:52 PM CST
Rel. Humidity: 71%
Dew Point: -2°F
Visibility: 8 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 25 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
Feels like -10°F
Clear
as of 9:15 PM CST
Rel. Humidity: 60%
Dew Point: -4°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
15 MPH
200° South
Cloud Level(s): Clear
Blowing Snow on Tonight Tonight... Areas of blowing snow. Mostly cloudy, with a temperature rising to around 11 by 4am. Wind chill values as low as -13. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

20% chance of blowing snow Tuesday Tuesday... A chance of flurries after noon. Areas of blowing snow. Partly sunny, with a high near 16. Wind chill values as low as -5. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 1. Wind chill values as low as -12. 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. Wind chill values as low as -12. 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 1. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 14.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 0.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 15.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 4.

Sunny on Saturday Saturday... Sunny, with a high near 22.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 5.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 25.

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

Partly Sunny on Monday Monday... Partly sunny, with a high near 31.

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
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.