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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: 5:36 am CST Nov 20, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

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Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Morning Fog on Today Mostly Cloudy on Tonight 30% chance of rain on Friday Sunny on Saturday Sunny on Sunday 30% chance of rain on Monday 40% chance of rain on Tuesday Mostly Sunny on Wednesday
High: 51°F Low: 41°F High: 52°F High: 53°F High: 59°F High: 55°F High: 54°F High: 43°F
Low: 30°F Low: 37°F Low: 36°F Low: 43°F Low: 33°F  
Morning Fog Mostly Cloudy Rain Sunny Sunny Rain Rain Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
45°
Cloudy
Mist
as of 4:52 AM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 4 Miles
Pressure: 30.08 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
DAVENPORT - (KDVN)
45°
Cloudy
Mist
as of 4:52 AM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 2 Miles
Pressure: 30.10 in.
Flight Rule: LIFR
Wind Data
5 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 400ft
Current Conditions at
CLINTON - (KCWI)
Cloudy
Mist
as of 4:56 AM CST
Visibility: 1 1/4 Miles
Pressure: 30.10 in.
Flight Rule: LIFR
Wind Data
6 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
STERLING ROCK - (KSQI)
43°
Cloudy
Mist
as of 5:05 AM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 1 1/2 Miles
Pressure: 30.12 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 300ft
Morning Fog on Today Today... Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 51. Southeast wind around 5 mph becoming southwest in the afternoon.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 41. Calm wind becoming north around 5 mph after midnight.
30% chance of rain Friday Friday... A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 52. Northeast wind 5 to 10 mph.
20% chance of rain Friday Night Friday Night... A 20 percent chance of rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 30. North wind around 5 mph becoming calm after midnight.
Sunny on Saturday Saturday... Sunny, with a high near 53.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 37.
Sunny on Sunday Sunday... Sunny, with a high near 59.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 36.
30% chance of rain Monday Monday... A 30 percent chance of rain after noon. Mostly cloudy, with a high near 55.
60% chance of rain Monday Night Monday Night... Rain likely, mainly after midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
40% chance of rain Tuesday Tuesday... A 40 percent chance of rain. Mostly cloudy, with a high near 54.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 33.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 43.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:57 AM
Sunset: 4:37 PM
Civil Sunrise:06:26 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 05:53 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:20 AM
Astro Sunset: 6:14 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.