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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Click for Hazardous Weather Outlook for Dayton, Illinois
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 11:11 pm CST Dec 15, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Morning Fog on Tonight Morning Fog on Tuesday Mostly Sunny on Wednesday 70% chance of rain on Thursday Mostly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Mostly Cloudy on Monday
Low: 15°F High: 36°F High: 39°F High: 45°F High: 31°F High: 43°F High: 35°F High: 40°F
Low: 27°F Low: 33°F Low: 9°F Low: 23°F Low: 21°F Low: 25°F  
Morning Fog Morning Fog Mostly Sunny Rain Mostly Sunny Partly Sunny Mostly Sunny Mostly Cloudy
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Current Conditions at
MOLINE - (KMLI)
12°
Clear
as of 10:52 PM CST
Rel. Humidity: 92%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
18°
Clear
as of 10:52 PM CST
Rel. Humidity: 78%
Dew Point: 12°F
Visibility: 10 Miles
Flight Rule: VFR
Wind Data
5 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
10°
Clear
as of 10:56 PM CST
Rel. Humidity: 84%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
6 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
14°
Clear
as of 10:56 PM CST
Rel. Humidity: 85%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
5 MPH
100° East
Cloud Level(s): Clear
Morning Fog on Tonight Tonight... Patchy fog after 4am. Otherwise, partly cloudy, with a low around 15. Calm wind becoming south around 5 mph.
Morning Fog on Tuesday Tuesday... Patchy freezing fog before 10am. Mostly sunny, with a high near 36. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 27. West wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 39. West wind 5 to 10 mph becoming south in the afternoon.
60% chance of rain Wednesday Night Wednesday Night... Rain likely after midnight. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
70% chance of rain Thursday Thursday... Rain likely before noon. Partly sunny, with a high near 45. Breezy. Chance of precipitation is 70%.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 9.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 31.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 23.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 43.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 35.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 25.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 40.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:22 AM
Sunset: 4:33 PM
Civil Sunrise:06:50 AM
Civil Sunset: 5:04 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:13 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.