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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 Dec 6, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
100% chance of snow on Tonight 30% chance of snow on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday Mostly Cloudy on Wednesday 30% chance of snow on Thursday Partly Sunny on Friday Mostly Sunny on Saturday
Low: 27°F High: 26 °F High: 25°F High: 41°F High: 36°F High: 26°F High: 15°F High: 10°F
Low: 2 °F Low: 17°F Low: 27°F Low: 16°F Low: 7°F Low: -3°F  
Snow Snow Partly Sunny Mostly Cloudy Mostly Cloudy Snow Partly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
27°
Mostly Cloudy
as of 4:10 PM CST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Broken at 2100ft
Current Conditions at
STERLING ROCK - (KSQI)
27°
Partly Cloudy
as of 4:06 PM CST
Rel. Humidity: 86%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 1400ft
100% chance of snow Tonight Tonight... Snow, mainly after 7pm. Steady temperature around 27. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.

30% chance of snow Sunday Sunday... A 30 percent chance of snow, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a temperature rising to near 26 by 10am, then falling to around 15 during the remainder of the day. North wind 5 to 15 mph, with gusts as high as 25 mph.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 2. North wind around 5 mph becoming calm in the evening.

Partly Sunny on Monday Monday... Partly sunny, with a high near 25. Light and variable wind becoming south 5 to 10 mph in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 17.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 41.

60% chance of rain Tuesday Night Tuesday Night... Rain likely, mainly before midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 36.

30% chance of snow Wednesday Night Wednesday Night... A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 16.

30% chance of snow Thursday Thursday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 26.

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

Partly Sunny on Friday Friday... Partly sunny, with a high near 15.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -3.

Mostly Sunny on Saturday Saturday... Mostly sunny and cold, with a high near 10.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:14 AM
Sunset: 4:31 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:37 PM
Astro Sunrise: 05:34 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.