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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 1:41 am CST Dec 26, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

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Overnight Friday Saturday Sunday Monday Tuesday Wednesday New Year's Day
50% chance of rain on Overnight Morning Fog on Friday Mostly Cloudy on Saturday 60% chance of rain on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on New Year's Day
Low: 40°F High: 50°F High: 55°F High: 53°F High: 22°F High: 32°F High: 32°F High: 28°F
Low: 38°F Low: 46°F Low: 14°F Low: 12°F Low: 20°F Low: 15°F  
Rain Morning Fog Mostly Cloudy Rain Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
46°
Feels like 41°F
Cloudy
Mist
as of 1:25 AM CST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 1 Miles
Pressure: 29.70 in.
Flight Rule: LIFR
Wind Data
10 MPH
110° East
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
DAVENPORT - (KDVN)
45°
Feels like 38°F
Clear
Fog
as of 12:52 AM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 1/2 Miles
Pressure: 29.71 in.
Flight Rule: IFR
Wind Data
14 MPH
130° Southeast
Current Conditions at
CLINTON - (KCWI)
43°
Feels like 35°F
Cloudy
Mist
as of 1:29 AM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 1 Miles
Pressure: 29.72 in.
Flight Rule: LIFR
Wind Data
14 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
STERLING ROCK - (KSQI)
43°
Feels like 36°F
Cloudy
Mist
as of 1:26 AM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 4 Miles
Pressure: 29.75 in.
Flight Rule: LIFR
Wind Data
10 MPH
110° East
Cloud Level(s): Solid Overcast at 400ft
50% chance of rain Overnight Overnight... A 50 percent chance of rain, mainly before 5am. Areas of dense fog. Otherwise, cloudy, with a low around 40. Southeast wind around 5 mph becoming southwest.
Morning Fog on Friday Friday... Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 50. Northwest wind 5 to 10 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 55. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Cloudy on Saturday Night Saturday Night... Cloudy, with a low around 46.
60% chance of rain Sunday Sunday... Rain likely, mainly after noon. Mostly cloudy, with a high near 53. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
30% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow before midnight. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 30%.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 22. Blustery.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 12.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 32.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 20.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 32.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 15.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 28.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:27 AM
Sunset: 4:38 PM
Civil Sunrise:06:55 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:18 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.