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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 am CST Jan 22, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Clear on Overnight 20% chance of snow on Thursday Mostly Sunny on Friday 30% chance of snow on Saturday 30% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday
Low: 13°F High: 27°F High: 0 °F High: 7°F High: 13°F High: 16°F High: 25°F High: 22°F
Low: -11°F Low: -7°F Low: 1°F Low: -3°F Low: 6°F Low: 9°F  
Mostly Clear Snow Mostly Sunny Snow Snow Sunny Mostly Sunny Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
16°
Feels like 2°F
Clear
as of 2:52 AM CST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
12 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
16°
Feels like 1°F
Clear
as of 2:52 AM CST
Rel. Humidity: 72%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
14 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
12°
Feels like -3°F
Clear
as of 2:56 AM CST
Rel. Humidity: 78%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
15 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
16°
Feels like 2°F
Clear
as of 2:56 AM CST
Rel. Humidity: 72%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
13 MPH
250° West
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 13. West wind around 10 mph, with gusts as high as 25 mph.

20% chance of snow Thursday Thursday... A chance of flurries before 2pm, then a chance of flurries with a slight chance of snow between 2pm and 5pm, then a chance of flurries after 5pm. Increasing clouds, with a high near 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

20% chance of snow Thursday Night Thursday Night... A chance of flurries before 10pm. Partly cloudy, with a low around -11. Wind chill values as low as -30. Northwest wind around 15 mph, with gusts as high as 30 mph.

Mostly Sunny on Friday Friday... Mostly sunny and cold, with a high near 0. Wind chill values as low as -35. North wind 10 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -7.

30% chance of snow Saturday Saturday... A 30 percent chance of snow after noon. Mostly cloudy and cold, with a high near 7.

40% chance of snow Saturday Night Saturday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 1.

30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Partly sunny, with a high near 13.

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

Sunny on Monday Monday... Sunny, with a high near 16.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 6.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 25.

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

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 22.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:21 AM
Sunset: 5:05 PM
Civil Sunrise:06:51 AM
Civil Sunset: 5:35 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:08 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:41 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.