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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 5:36 am CST Dec 8, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Partly Sunny on Today Partly Cloudy on Tonight Mostly Cloudy on Tuesday Mostly Cloudy on Wednesday 30% chance of snow on Thursday 30% chance of snow on Friday Partly Sunny on Saturday Mostly Sunny on Sunday
High: 24°F Low: 29 °F High: 40°F High: 36°F High: 26°F High: 18°F High: 8°F High: 18°F
Low: 31°F Low: 15°F Low: 9°F Low: -4°F Low: -2°F  
Partly Sunny Partly Cloudy Mostly Cloudy Mostly Cloudy Snow Snow Partly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
10°
Cloudy
as of 8:52 AM CST
Rel. Humidity: 72%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.36 in.
Flight Rule: VFR
Wind Data
3 MPH
070° East
Cloud Level(s): Solid Overcast at 7500ft
Current Conditions at
DAVENPORT - (KDVN)
10°
Cloudy
as of 8:52 AM CST
Rel. Humidity: 78%
Dew Point: 5°F
Wind Data
5 MPH
090° East
Cloud Level(s): Scattered at 3200ft, Solid Overcast at 7000ft
Current Conditions at
CLINTON - (KCWI)
12°
Cloudy
as of 8:56 AM CST
Rel. Humidity: 78%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.37 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3300ft
Current Conditions at
STERLING ROCK - (KSQI)
Mostly Clear
as of 8:56 AM CST
Rel. Humidity: 78%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.39 in.
Flight Rule: VFR
Wind Data
3 MPH
090° East
Cloud Level(s): Few at 2900ft
Partly Sunny on Today Today... Partly sunny, with a high near 24. South wind 5 to 10 mph.

Partly Cloudy on Tonight Tonight... Cloudy, then gradually becoming partly cloudy, with a temperature rising to around 29 by 4am. South wind 10 to 15 mph, with gusts as high as 20 mph.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 40. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

60% chance of rain & snow Tuesday Night Tuesday Night... Rain likely before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Breezy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 36. Breezy.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 15.

30% chance of snow Thursday Thursday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 26.

30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 9.

30% chance of snow Friday Friday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 18.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -4.

Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 8.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around -2.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 18.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:15 AM
Sunset: 4:31 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:37 PM
Astro Sunrise: 05:36 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.