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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 5:36 am CST Jan 17, 2026 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday M.L.King Day Tuesday Wednesday Thursday Friday
80% chance of snow on Today Partly Cloudy on Tonight 60% chance of snow on Sunday Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday Partly Sunny on Wednesday Partly Sunny on Thursday Partly Sunny on Friday
High: 18°F Low: 8 °F High: 23°F High: 11°F High: 29°F High: 31°F High: 23°F High: 26°F
Low: 1 °F Low: 3°F Low: 20°F Low: 13°F Low: 10°F  
Snow Partly Cloudy Snow Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
10°
Feels like -4°F
Mostly Clear
as of 4:52 AM CST
Rel. Humidity: 66%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
12 MPH
280° West
Cloud Level(s): Few at 2200ft
Current Conditions at
DAVENPORT - (KDVN)
10°
Feels like -6°F
Clear
as of 4:52 AM CST
Rel. Humidity: 66%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 25 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
10°
Feels like -7°F
Clear
as of 4:56 AM CST
Rel. Humidity: 72%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
17 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
10°
Feels like -7°F
Clear
as of 4:56 AM CST
Rel. Humidity: 72%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
18 MPH
260° West
Cloud Level(s): Clear
80% chance of snow Today Today... Snow, mainly before 5pm. High near 18. Wind chill values as low as -5. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

Partly Cloudy on Tonight Tonight... Cloudy, then gradually becoming partly cloudy, with a low around 8. Wind chill values as low as -5. West wind 10 to 15 mph, with gusts as high as 30 mph.

60% chance of snow Sunday Sunday... Snow likely after noon. Mostly cloudy, with a high near 23. Wind chill values as low as -5. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 1. Wind chill values as low as -20. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 35 mph.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 11.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 3.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 29.

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

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

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 13.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 23.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 10.

Partly Sunny on Friday Friday... Partly sunny, with a high near 26.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:24 AM
Sunset: 4:59 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:29 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 6:03 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:36 PM
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