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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 4:51 pm CST Dec 25, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday New Year's Day
60% chance of rain on Tonight Morning Fog on Friday Mostly Cloudy on Saturday 60% chance of rain on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on New Year's Day
Low: 47 °F High: 50°F High: 55°F High: 53°F High: 22°F High: 32°F High: 32°F High: 28°F
Low: 38°F Low: 46°F Low: 14°F Low: 12°F Low: 20°F Low: 15°F  
Rain Morning Fog Mostly Cloudy Rain Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
43°
Feels like 37°F
Cloudy
Mist
as of 5:52 PM CST
Rel. Humidity: 86%
Dew Point: 39°F
Visibility: 5 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Wind Data
9 MPH
080° East
Cloud Level(s): Solid Overcast at 1300ft
Current Conditions at
DAVENPORT - (KDVN)
41°
Feels like 33°F
Cloudy
Mist
as of 5:52 PM CST
Rel. Humidity: 86%
Dew Point: 37°F
Visibility: 6 Miles
Pressure: 29.97 in.
Flight Rule: IFR
Wind Data
14 MPH
100° East
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
CLINTON - (KCWI)
39°
Feels like 30°F
Cloudy
as of 5:56 PM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: MVFR
Wind Data
15 MPH
100° East
Cloud Level(s): Solid Overcast at 1700ft
Current Conditions at
STERLING ROCK - (KSQI)
39°
Feels like 30°F
Partly Cloudy
as of 5:56 PM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
15 MPH
080° East
Cloud Level(s): Scattered at 2000ft
60% chance of rain Tonight Tonight... Drizzle before midnight, then rain likely, mainly between midnight and 5am. Patchy dense fog. Otherwise, cloudy, with a temperature rising to around 47 by 3am. East wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 60%.

Morning Fog on Friday Friday... Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 50. Northwest wind 5 to 10 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 55. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Cloudy on Saturday Night Saturday Night... Cloudy, with a low around 46.

60% chance of rain Sunday Sunday... Rain likely, mainly after noon. Mostly cloudy, with a high near 53. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

30% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow before midnight. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 30%.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 22. Blustery.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 12.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 32.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 20.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 32.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 15.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 28.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:26 AM
Sunset: 4:37 PM
Civil Sunrise:06:55 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:46 AM
Astro Sunset: 6:17 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.