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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 4:41 am CST Dec 12, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
20% chance of snow on Today 20% chance of snow on Tonight 90% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Thursday
High: 27°F Low: 5 °F High: 10°F High: 6°F High: 28°F High: 38°F High: 46°F High: 43°F
Low: -9°F Low: -6°F Low: 14°F Low: 30°F Low: 32°F  
Snow Snow Snow Sunny Mostly Sunny Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
23°
Partly Cloudy
as of 3:52 AM CST
Rel. Humidity: 85%
Dew Point: 19°F
Visibility: 8 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
5 MPH
030° Northeast
Cloud Level(s): Scattered at 7000ft
Current Conditions at
DAVENPORT - (KDVN)
19°
Clear
as of 4:26 AM CST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 9 Miles
Flight Rule: VFR
Wind Data
5 MPH
030° Northeast
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
16°
Clear
as of 3:56 AM CST
Rel. Humidity: 85%
Dew Point: 12°F
Visibility: 9 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
8 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
18°
Clear
as of 3:56 AM CST
Rel. Humidity: 85%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
20% chance of snow Today Today... A 20 percent chance of flurries with a slight chance of snow between 2pm and 3pm. Increasing clouds, with a high near 27. North wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

20% chance of snow Tonight Tonight... A 20 percent chance of snow after 5am. Mostly cloudy, with a low around 5. Wind chill values as low as -10. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

90% chance of snow Saturday Saturday... Snow, mainly before 3pm. High near 10. Wind chill values as low as -10. Northwest wind 5 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around -9. Wind chill values as low as -25. Northwest wind around 10 mph.

Sunny on Sunday Sunday... Sunny and cold, with a high near 6.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -6.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 28.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 14.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 38.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 30.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 46.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 32.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 43.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:19 AM
Sunset: 4:32 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:39 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.