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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : Henry County
Issued: 6:41 pm CST Nov 21, 2025 Latitude: 41.4892011 Longitude: -90.3215147 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thanksgiving Day Friday
20% chance of rain on Tonight Sunny on Saturday Sunny on Sunday 50% chance of rain on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday
Low: 29°F High: 56°F High: 57°F High: 56°F High: 56°F High: 42°F High: 39°F High: 37°F
Low: 33°F Low: 37°F Low: 47°F Low: 30°F Low: 24°F Low: 21°F  
Rain Sunny Sunny Rain Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
MOLINE - (KMLI)
45°
Cloudy
as of 6:52 PM CST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
7 MPH
010° North
Cloud Level(s): Solid Overcast at 9500ft
Current Conditions at
DAVENPORT - (KDVN)
43°
Cloudy
as of 6:52 PM CST
Rel. Humidity: 75%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
8 MPH
010° North
Cloud Level(s): Scattered at 8000ft, Solid Overcast at 11000ft
Current Conditions at
CLINTON - (KCWI)
43°
Mostly Cloudy
as of 6:56 PM CST
Rel. Humidity: 81%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
8 MPH
0° North
Cloud Level(s): Broken at 10000ft
Current Conditions at
STERLING ROCK - (KSQI)
45°
Mostly Clear
as of 6:56 PM CST
Rel. Humidity: 70%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
7 MPH
0° North
Cloud Level(s): Few at 12000ft
20% chance of rain Tonight Tonight... A slight chance of rain between 8pm and 9pm. Cloudy during the early evening, then gradual clearing, with a low around 29. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Sunny on Saturday Saturday... Sunny, with a high near 56. Light and variable wind becoming southwest 5 to 10 mph in the morning.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 33. Southwest wind 5 to 10 mph becoming northwest after midnight.

Sunny on Sunday Sunday... Sunny, with a high near 57. Calm wind becoming southwest around 5 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 37.

50% chance of rain Monday Monday... A 50 percent chance of rain after noon. Mostly cloudy, with a high near 56.

80% chance of rain Monday Night Monday Night... Rain, mainly before midnight. Low around 47. Chance of precipitation is 80%.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 56.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 30.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 42.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 24.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 39.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 21.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 37.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:58 AM
Sunset: 4:37 PM
Civil Sunrise:06:28 AM
Civil Sunset: 5:07 PM
Nautical Sunrise: 05:54 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:21 AM
Astro Sunset: 6:14 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.