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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 3:16 pm CST Jan 13, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday M.L.King Day Tuesday
20% chance of snow on Tonight 20% chance of snow on Wednesday Increasing Clouds on Thursday 30% chance of snow on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday
Low: 26°F High: 25 °F High: 29°F High: 36°F High: 17°F High: 19°F High: 20°F High: 20°F
Low: 14°F Low: 27°F Low: 12°F Low: 4°F Low: 9°F Low: 3°F  
Snow Snow Increasing Clouds Snow Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
46°
Feels like 39°F
Clear
as of 4:52 PM CST
Rel. Humidity: 65%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.64 in.
Flight Rule: VFR
Wind Data
16 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
45°
Feels like 38°F
Clear
as of 4:52 PM CST
Rel. Humidity: 70%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.64 in.
Flight Rule: VFR
Wind Data
13 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
41°
Feels like 33°F
Clear
as of 4:56 PM CST
Rel. Humidity: 80%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.63 in.
Flight Rule: VFR
Wind Data
15 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
45°
Feels like 36°F
Clear
as of 4:56 PM CST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.60 in.
Flight Rule: VFR
Wind Data
21 MPH
250° West
Cloud Level(s): Clear
20% chance of snow Tonight Tonight... A 20 percent chance of snow after 4am. Mostly cloudy, with a low around 26. Blustery, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

20% chance of snow Wednesday Wednesday... A 20 percent chance of snow before 7am. Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 25 by 10am. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 14. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 29. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

80% chance of snow Thursday Night Thursday Night... Snow, mainly before midnight. Low around 27. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

30% chance of snow Friday Friday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 36.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 12.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 17.

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

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 19.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 9.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 20.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 3.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 20.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:26 AM
Sunset: 4:54 PM
Civil Sunrise:06:55 AM
Civil Sunset: 5:25 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:48 AM
Astro Sunset: 6:32 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.