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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 3:26 am CST Dec 8, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
20% chance of snow on Overnight 20% chance of snow on Monday 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
Low: -1°F High: 24°F High: 40°F High: 36°F High: 26°F High: 18°F High: 8°F High: 18°F
Low: 28 °F Low: 31°F Low: 15°F Low: 9°F Low: -4°F Low: -2°F  
Snow Snow Mostly Cloudy Mostly Cloudy Snow Snow Partly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
-2°
Partly Cloudy
as of 2:52 AM CST
Rel. Humidity: 84%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 3300ft
Current Conditions at
DAVENPORT - (KDVN)
-2°
Clear
as of 2:52 AM CST
Rel. Humidity: 77%
Dew Point: -8°F
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
-4°
Clear
as of 2:56 AM CST
Rel. Humidity: 83%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
5 MPH
320° Northwest
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
Mostly Cloudy
as of 2:56 AM CST
Rel. Humidity: 77%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 3500ft
20% chance of snow Overnight Overnight... A chance of flurries after 4am. Cloudy, with a low around -1. Calm wind.

20% chance of snow Monday Monday... A chance of flurries before 7am. Mostly cloudy, with a high near 24. Calm wind becoming south around 5 mph in the afternoon.

Partly Cloudy on Monday Night Monday Night... Cloudy, then gradually becoming partly cloudy, with a temperature rising to around 28 by 5am. 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. 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.