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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 4:21 am CST Jan 15, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday M.L.King Day Tuesday Wednesday
20% chance of snow on Today 60% chance of snow on Tonight Mostly Cloudy on Friday Mostly Cloudy on Saturday Partly Sunny on Sunday Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday Partly Sunny on Wednesday
High: 28°F Low: 30 °F High: 37°F High: 17°F High: 21°F High: 14°F High: 20°F High: 30°F
Low: 13°F Low: 6°F Low: 6°F Low: 3°F Low: 12°F  
Snow Snow Mostly Cloudy Mostly Cloudy Partly Sunny Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
12°
Clear
as of 5:52 AM CST
Rel. Humidity: 72%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
7 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
10°
Clear
as of 5:52 AM CST
Rel. Humidity: 78%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
8 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
9°
Clear
as of 5:56 AM CST
Rel. Humidity: 78%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
8 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
12°
Clear
as of 5:56 AM CST
Rel. Humidity: 72%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
7 MPH
320° Northwest
Cloud Level(s): Clear
20% chance of snow Today Today... A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 28. Northwest wind 5 to 10 mph becoming south in the afternoon.
60% chance of snow Tonight Tonight... Snow likely, mainly before 9pm. Cloudy, with a temperature rising to around 30 by 2am. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 37. West wind around 15 mph, with gusts as high as 25 mph.
30% chance of snow Friday Night Friday Night... A chance of snow before midnight, then a slight chance of snow showers after midnight. Mostly cloudy, with a low around 13. Wind chill values as low as zero. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
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 6.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 21.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 6.
Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 14.
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.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 12.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 30.
Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:25 AM
Sunset: 4:56 PM
Civil Sunrise:06:55 AM
Civil Sunset: 5:27 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 6:01 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:34 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.