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Dayton, Illinois Weather Forecast
Dayton, Illinois Weather
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Weather Forecast for Dayton, Illinois : LaSalle County
Issued: 2:01 pm CST Jan 13, 2026 Latitude: 41.3847551 Longitude: -88.7942425 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday M.L.King Day
Mostly Cloudy on This Afternoon 20% chance of snow on Tonight 20% chance of snow on Wednesday Sunny on Thursday 60% chance of snow on Friday 20% chance of snow on Saturday Partly Sunny on Sunday Partly Sunny on M.L.King Day
High: 50°F Low: 27°F High: 23 °F High: 26°F High: 36°F High: 17°F High: 17°F High: 18°F
Low: 15°F Low: 23°F Low: 14°F Low: 6°F Low: 8°F  
Mostly Cloudy Snow Snow Sunny Snow Snow Partly Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
46°
Feels like 41°F
Clear
as of 1:59 PM CST
Rel. Humidity: 65%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.62 in.
Flight Rule: VFR
Wind Data
12 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
46°
Feels like 40°F
Clear
as of 1:55 PM CST
Rel. Humidity: 65%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.59 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 20 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
AURORA - (KARR)
48°
Feels like 42°F
Clear
as of 1:52 PM CST
Rel. Humidity: 66%
Dew Point: 37°F
Visibility: 9 Miles
Pressure: 29.55 in.
Flight Rule: VFR
Wind Data
16 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
46°
Feels like 40°F
Clear
as of 1:55 PM CST
Rel. Humidity: 70%
Dew Point: 37°F
Pressure: 29.65 in.
Wind Data
14 MPH
Gust: 21 MPH
240° Southwest
Cloud Level(s): Clear
Mostly Cloudy on This Afternoon This Afternoon... Mostly cloudy early, then becoming sunny, with a high near 50. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

20% chance of snow Tonight Tonight... Scattered flurries between 3am and 5am, then scattered flurries with isolated snow showers after 5am. Increasing clouds, with a low around 27. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

20% chance of snow Wednesday Wednesday... Scattered flurries with isolated snow showers before 7am, then scattered flurries after 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 23 by 5pm. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 15. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunny on Thursday Thursday... Sunny, with a high near 26. North northwest wind around 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

80% chance of snow Thursday Night Thursday Night... Snow. Low around 23. Chance of precipitation is 80%.

60% chance of snow Friday Friday... A chance of snow before noon, then snow showers likely after noon. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.

20% chance of snow Friday Night Friday Night... A chance of snow showers. Mostly cloudy, with a low around 14.

20% chance of snow Saturday Saturday... A chance of snow showers after noon. Mostly cloudy, with a high near 17.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 6.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 17.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 8.

Partly Sunny on M.L.King Day M.L.King Day... Partly sunny, with a high near 18.

Current Radar Image


Sun Almanac for Dayton, Illinois
Sunrise: 07:20 AM
Sunset: 4:48 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:19 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:26 PM
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