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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 1:36 am CST Dec 5, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Patchy Fog on Overnight Morning Fog on Friday Partly Sunny on Saturday 30% chance of snow on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday 40% chance of rain & snow on Wednesday Partly Sunny on Thursday
Low: 8 °F High: 31°F High: 28°F High: 23°F High: 24°F High: 33°F High: 35°F High: 25°F
Low: 20°F Low: 20°F Low: -2°F Low: 19°F Low: 29°F Low: 10°F  
Patchy Fog Morning Fog Partly Sunny Snow Partly Sunny Mostly Cloudy Rain & Snow Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
Mostly Clear
as of 1:52 AM CST
Rel. Humidity: 60%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 4900ft, Few at 6000ft
Current Conditions at
DAVENPORT - (KDVN)
12°
Feels like -1°F
Mostly Cloudy
as of 1:52 AM CST
Rel. Humidity: 56%
Dew Point: -0°F
Visibility: 10 Miles
Flight Rule: VFR
Wind Data
12 MPH
190° South
Cloud Level(s): Broken at 6000ft
Current Conditions at
CLINTON - (KCWI)
10°
Feels like -4°F
Cloudy
as of 1:56 AM CST
Rel. Humidity: 72%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
13 MPH
190° South
Cloud Level(s): Scattered at 4200ft, Solid Overcast at 5000ft
Current Conditions at
STERLING ROCK - (KSQI)
Cloudy
as of 1:56 AM CST
Rel. Humidity: 71%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3900ft
Patchy Fog on Overnight Overnight... Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 8. Wind chill values as low as -5. South wind around 10 mph.

Morning Fog on Friday Friday... Patchy fog before 9am. Otherwise, increasing clouds, with a high near 31. Wind chill values as low as -5. Southwest wind around 10 mph, with gusts as high as 20 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 20. Southwest wind 5 to 10 mph becoming northwest after midnight.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 28. Northwest wind around 5 mph becoming northeast in the afternoon.

70% chance of snow Saturday Night Saturday Night... Snow likely, mainly after midnight. Cloudy, with a low around 20. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Partly sunny, with a high near 23.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -2.

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 before midnight. Mostly cloudy, with a low around 19.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 33.

50% chance of snow Tuesday Night Tuesday Night... A 50 percent chance of snow. Cloudy, with a low around 29.

40% chance of rain & snow Wednesday Wednesday... A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 10.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 25.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:13 AM
Sunset: 4:31 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:37 PM
Astro Sunrise: 05:34 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.