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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 3:10 pm CST Nov 23, 2025 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thanksgiving Day Friday Saturday Sunday
Increasing Clouds on Tonight Patchy Fog on Monday 30% chance of rain on Tuesday Partly Sunny on Wednesday Sunny on Thanksgiving Day Partly Sunny on Friday 20% chance of rain & snow on Saturday 70% chance of rain on Sunday
Low: 34°F High: 52°F High: 57°F High: 37°F High: 33°F High: 33°F High: 34°F High: 38°F
Low: 46°F Low: 34°F Low: 23°F Low: 20°F Low: 22°F Low: 28°F  
Increasing Clouds Patchy Fog Rain Partly Sunny Sunny Partly Sunny Rain & Snow Rain
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Current Conditions at
PERU - (KVYS)
50°
Clear
as of 5:15 PM CST
Rel. Humidity: 53%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
50°
Clear
as of 5:35 PM CST
Rel. Humidity: 49%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
3 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
46°
Clear
as of 4:52 PM CST
Rel. Humidity: 42%
Dew Point: 25°F
Visibility: 8 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
43°
Clear
as of 5:15 PM CST
Rel. Humidity: 75%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
5 MPH
160° South
Cloud Level(s): Clear
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 34. Calm wind becoming south around 5 mph after midnight.

Patchy Fog on Monday Monday... Patchy fog before noon. Otherwise, cloudy, with a high near 52. South wind 5 to 10 mph, with gusts as high as 15 mph.

70% chance of rain Monday Night Monday Night... Rain likely, mainly after 9pm. Cloudy, with a low around 46. South wind around 5 mph becoming calm after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

30% chance of rain Tuesday Tuesday... A 30 percent chance of rain. Mostly cloudy, with a high near 57. Light south wind becoming west southwest 5 to 10 mph in the morning.

30% chance of rain Tuesday Night Tuesday Night... A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 34. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 37. Breezy.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 23. Breezy.

Sunny on Thanksgiving Day Thanksgiving Day... Sunny, with a high near 33.

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

Partly Sunny on Friday Friday... Partly sunny, with a high near 33.

20% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 22.

20% chance of rain & snow Saturday Saturday... A chance of rain and snow. Mostly cloudy, with a high near 34.

Snow on Saturday Night Saturday Night... Snow likely. Cloudy, with a low around 28.

70% chance of rain Sunday Sunday... Rain likely. Mostly cloudy, with a high near 38.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 06:54 AM
Sunset: 4:30 PM
Civil Sunrise:06:23 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 05:49 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:16 AM
Astro Sunset: 6:07 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.