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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 3:16 am CST Dec 4, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

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Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on Today Increasing Clouds on Tonight Mostly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday 30% chance of rain on Wednesday
High: 13°F Low: 1 °F High: 31°F High: 29°F High: 22°F High: 24°F High: 34°F High: 34°F
Low: 21°F Low: 13°F Low: 1°F Low: 16°F Low: 22°F  
Sunny Increasing Clouds Mostly Sunny Partly Sunny Mostly Sunny Partly Sunny Mostly Cloudy Rain
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Current Conditions at
MOLINE - (KMLI)
3°
Clear
as of 4:52 AM CST
Rel. Humidity: 84%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: VFR
Wind Data
6 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
-0°
Clear
as of 4:52 AM CST
Rel. Humidity: 91%
Dew Point: -2°F
Visibility: 10 Miles
Flight Rule: VFR
Wind Data
5 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
-2°
Clear
as of 4:56 AM CST
Rel. Humidity: 84%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
8 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
7°
Clear
as of 4:56 AM CST
Rel. Humidity: 71%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
7 MPH
350° North
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind around 5 mph becoming calm.
Increasing Clouds on Tonight Tonight... Increasing clouds, with a temperature falling to near 1 by 8pm, then rising to around 9 during the remainder of the night. Wind chill values as low as -10. South wind 5 to 10 mph.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 31. Wind chill values as low as -5. Southwest wind around 10 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 21. Southwest wind 5 to 10 mph becoming west after midnight.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 29.
50% chance of snow Saturday Night Saturday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 13. New snow accumulation of less than one inch possible.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 22.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 1.
Partly Sunny on Monday Monday... Partly sunny, with a high near 24.
30% chance of snow Monday Night Monday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 16.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 34.
40% chance of snow Tuesday Night Tuesday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 22.
30% chance of rain Wednesday Wednesday... A 30 percent chance of rain. Mostly cloudy, with a high near 34.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:12 AM
Sunset: 4:32 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:37 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:11 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.