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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 8:22 pm CST Jan 8, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
60% chance of thunderstorms on Tonight 20% chance of rain on Friday 40% chance of snow on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Mostly Cloudy on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Thursday
Low: 40°F High: 46°F High: 38°F High: 31°F High: 43°F High: 46°F High: 35°F High: 31°F
Low: 31°F Low: 19°F Low: 24°F Low: 33°F Low: 31°F Low: 20°F  
Thunderstorms Rain Snow Mostly Sunny Mostly Sunny Mostly Cloudy Mostly Cloudy Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
59°
Mostly Clear
as of 7:52 PM CST
Rel. Humidity: 87%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.32 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 25 MPH
190° South
Cloud Level(s): Few at 2900ft
Current Conditions at
DAVENPORT - (KDVN)
59°
Partly Cloudy
as of 7:52 PM CST
Rel. Humidity: 87%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.31 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 35 MPH
190° South
Cloud Level(s): Few at 1600ft, Scattered at 2300ft
Current Conditions at
STERLING ROCK - (KSQI)
57°
Mostly Clear
as of 7:56 PM CST
Rel. Humidity: 100%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.36 in.
Flight Rule: VFR
Wind Data
6 MPH
Cloud Level(s): Few at 3800ft
60% chance of thunderstorms Tonight Tonight... Rain likely and possibly a thunderstorm before midnight, then a slight chance of rain after 5am. Mostly cloudy, with a low around 40. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%.

20% chance of rain Friday Friday... A 20 percent chance of rain before 7am. Mostly sunny, with a high near 46. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 35 mph.

20% chance of rain & snow Friday Night Friday Night... A slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Increasing clouds, with a low around 31. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 20%.

40% chance of snow Saturday Saturday... A 40 percent chance of snow. Partly sunny, with a high near 38. West wind 5 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 19.

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

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 24.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 43.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 33.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 46.

30% chance of rain Tuesday Night Tuesday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 31.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 35.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 20.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 31.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:27 AM
Sunset: 4:49 PM
Civil Sunrise:06:56 AM
Civil Sunset: 5:20 PM
Nautical Sunrise: 06:22 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 05:49 AM
Astro Sunset: 6:28 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.