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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 18, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight M.L.King Day Tuesday Wednesday Thursday Friday Saturday Sunday
60% chance of snow on Tonight Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday Partly Sunny on Saturday Partly Sunny on Sunday
Low: 0 °F High: 12°F High: 25°F High: 30°F High: 22°F High: 20°F High: 9°F High: 10°F
Low: 5 °F Low: 19°F Low: 11°F Low: 9°F Low: 1°F Low: -5°F  
Snow Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
19°
Feels like 8°F
Cloudy
Light Snow
as of 6:52 PM CST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 9 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
9 MPH
230° Southwest
Cloud Level(s): Scattered at 1800ft, Broken at 2500ft, Solid Overcast at 3100ft
Current Conditions at
DAVENPORT - (KDVN)
19°
Feels like 7°F
Cloudy
Light Snow Mist
as of 7:07 PM CST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 5 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
12 MPH
260° West
Cloud Level(s): Few at 1600ft, Scattered at 2300ft, Solid Overcast at 3000ft
Current Conditions at
CLINTON - (KCWI)
19°
Feels like 5°F
Cloudy
Light Snow
as of 7:35 PM CST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 9 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
15 MPH
260° West
Cloud Level(s): Few at 2600ft, Broken at 3300ft, Solid Overcast at 4700ft
Current Conditions at
STERLING ROCK - (KSQI)
18°
Feels like 3°F
Clear
Light Snow
as of 6:56 PM CST
Rel. Humidity: 85%
Dew Point: 14°F
Visibility: 9 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
14 MPH
240° Southwest
Cloud Level(s): Clear
60% chance of snow Tonight Tonight... Snow likely, mainly before 8pm. Mostly cloudy, with a low around 0. Wind chill values as low as -20. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 12. Wind chill values as low as -20. Blustery, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

Mostly Clear on Monday Night Monday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 5. Wind chill values as low as -5. West wind 5 to 10 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 25. Wind chill values as low as zero. West wind around 5 mph becoming south in the afternoon.

40% chance of snow Tuesday Night Tuesday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 19.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 30.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 11.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 22.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 9.

Partly Sunny on Friday Friday... Partly sunny, with a high near 20.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 1.

Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 9.

30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow. Mostly cloudy, with a low around -5.

Partly Sunny on Sunday Sunday... Partly sunny and cold, with a high near 10.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:24 AM
Sunset: 5:00 PM
Civil Sunrise:06:53 AM
Civil Sunset: 5:30 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 6:04 PM
Astro Sunrise: 05:46 AM
Astro Sunset: 6:37 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.