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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 6:01 am CST Dec 28, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday New Year's Day Friday Saturday
90% chance of rain & snow on Today 50% chance of snow on Tonight 20% chance of snow on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on New Year's Day Mostly Sunny on Friday Partly Sunny on Saturday
High: 51 °F Low: 13°F High: 21°F High: 31°F High: 33°F High: 24°F High: 31°F High: 35°F
Low: 10°F Low: 24°F Low: 16°F Low: 12°F Low: 20°F  
Rain & Snow Snow Snow Mostly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
48°
Cloudy
Heavy Rain Fog
as of 9:02 AM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 1/2 Miles
Pressure: 29.54 in.
Flight Rule: LIFR
Wind Data
3 MPH
090° East
Cloud Level(s): Broken at 300ft, Broken at 2100ft, Solid Overcast at 7000ft
Current Conditions at
DAVENPORT - (KDVN)
48°
Clear
Light Rain Fog
as of 8:52 AM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 1/2 Miles
Pressure: 29.56 in.
Flight Rule: IFR
Wind Data
3 MPH
080° East
Current Conditions at
STERLING ROCK - (KSQI)
50°
Cloudy
Fog
as of 8:56 AM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 1/2 Miles
Pressure: 29.57 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 200ft
90% chance of rain & snow Today Today... Rain before 5pm, then a chance of snow. Some thunder is also possible. Areas of dense fog before noon. Temperature rising to near 51 by 11am, then falling to around 34 during the remainder of the day. Windy, with a southeast wind 5 to 10 mph becoming west 20 to 30 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

50% chance of snow Tonight Tonight... A 50 percent chance of snow. Mostly cloudy, with a low around 13. Wind chill values as low as -5. Windy, with a west wind around 30 mph, with gusts as high as 45 mph. New snow accumulation of less than a half inch possible.

20% chance of snow Monday Monday... A 20 percent chance of snow before noon. Partly sunny, with a high near 21. Wind chill values as low as -5. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 10. Wind chill values as low as zero. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 31.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 24.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 33.

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

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 24.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 12.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 31.

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

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 35.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:27 AM
Sunset: 4:39 PM
Civil Sunrise:06:56 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:19 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.