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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 4:31 pm CST Jan 22, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
20% chance of snow on This Afternoon 20% chance of snow on Tonight Mostly Sunny on Friday 40% chance of snow on Saturday 30% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday
High: 21°F Low: -11°F High: 1 °F High: 7°F High: 13°F High: 16°F High: 24°F High: 18°F High: 12°F
Low: -5°F Low: 4 °F Low: -3°F Low: 7°F Low: 7°F Low: -1°F  
Snow Snow Mostly Sunny Snow Snow Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
21°
Feels like 8°F
Clear
as of 4:52 PM CST
Rel. Humidity: 41%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 24 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
19°
Feels like 4°F
Clear
as of 4:52 PM CST
Rel. Humidity: 48%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
16 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
18°
Feels like 2°F
Clear
as of 4:56 PM CST
Rel. Humidity: 57%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
16 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
19°
Feels like 2°F
Clear
as of 4:56 PM CST
Rel. Humidity: 44%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 29 MPH
280° West
Cloud Level(s): Clear
20% chance of snow This Afternoon This Afternoon... A chance of flurries. Mostly sunny, with a steady temperature around 21. Northwest wind around 15 mph, with gusts as high as 25 mph.

20% chance of snow Tonight Tonight... 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 25 mph.

Mostly Sunny on Friday Friday... Mostly sunny and cold, with a high near 1. Wind chill values as low as -35. North wind 10 to 15 mph, with gusts as high as 25 mph.

Increasing Clouds on Friday Night Friday Night... Increasing clouds, with a low around -5. Wind chill values as low as -20. North wind 5 to 10 mph.

40% chance of snow Saturday Saturday... A 40 percent chance of snow after noon. Cloudy and cold, with a high near 7.

50% chance of snow Saturday Night Saturday Night... A 50 percent chance of snow. Cloudy, with a low around 4. New snow accumulation of less than a half inch possible.

30% chance of snow Sunday Sunday... A 30 percent chance of snow. Mostly cloudy, 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 7.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 24.

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

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 18.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around -1.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 12.

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.