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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 1:11 pm CST Dec 11, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
60% chance of snow on This Afternoon 100% chance of snow on Tonight 20% chance of snow on Friday 70% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday
High: 25°F Low: 18°F High: 27°F High: 9 °F High: 4°F High: 27°F High: 37°F High: 44°F
Low: 5 °F Low: -9°F Low: -7°F Low: 15°F Low: 30°F  
Snow Snow Snow Snow Sunny Mostly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
MOLINE - (KMLI)
25°
Partly Cloudy
as of 12:52 PM CST
Rel. Humidity: 73%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
3 MPH
140° Southeast
Cloud Level(s): Few at 1800ft, Scattered at 10000ft
Current Conditions at
DAVENPORT - (KDVN)
25°
Cloudy
as of 12:52 PM CST
Rel. Humidity: 79%
Dew Point: 19°F
Visibility: 7 Miles
Flight Rule: VFR
Wind Data
3 MPH
180° South
Cloud Level(s): Few at 1500ft, Solid Overcast at 3200ft
Current Conditions at
CLINTON - (KCWI)
27°
Cloudy
as of 1:40 PM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: MVFR
Wind Data
3 MPH
010° North
Cloud Level(s): Solid Overcast at 1500ft
Current Conditions at
STERLING ROCK - (KSQI)
27°
Mostly Cloudy
as of 12:56 PM CST
Rel. Humidity: 68%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
3 MPH
230° Southwest
Cloud Level(s): Broken at 3100ft
60% chance of snow This Afternoon This Afternoon... Snow likely, mainly after 5pm. Cloudy, with a high near 25. Southeast wind around 5 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

100% chance of snow Tonight Tonight... Snow, mainly before midnight. Low around 18. East wind around 5 mph becoming northeast after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

20% chance of snow Friday Friday... A slight chance of snow between 9am and 10am. Mostly cloudy, with a high near 27. Northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 5. Wind chill values as low as -10. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

70% chance of snow Saturday Saturday... Snow likely. Mostly cloudy and cold, with a high near 9. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around -9.

Sunny on Sunday Sunday... Sunny and cold, with a high near 4.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -7.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 27.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 15.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 37.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 30.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:18 AM
Sunset: 4:31 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:11 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.