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Ontario, Illinois Weather Forecast
Ontario, Illinois Weather
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Click for Hazardous Weather Outlook for Ontario, Illinois
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Weather Forecast for Ontario, Illinois : Knox County
Issued: 9:36 pm CST Dec 4, 2025 Latitude: 41.0786484 Longitude: -90.3076256 View on Google Maps

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Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Fog on Tonight Morning Fog on Friday Partly Sunny on Saturday 30% chance of snow on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday 20% chance of rain on Wednesday Partly Sunny on Thursday
Low: -1°F High: 31°F High: 29°F High: 25°F High: 24°F High: 34°F High: 35°F High: 25°F
Low: 21°F Low: 20°F Low: -1°F Low: 16°F Low: 25°F Low: 11°F  
Fog Morning Fog Partly Sunny Snow Partly Sunny Mostly Cloudy Rain Partly Sunny
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Current Conditions at
GALESBURG - (KGBG)
5°
Clear
as of 10:35 PM CST
Rel. Humidity: 92%
Dew Point: 3°F
Visibility: 10 Miles
Flight Rule: VFR
Wind Data
6 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
MOLINE - (KMLI)
1°
Clear
as of 9:52 PM CST
Rel. Humidity: 77%
Dew Point: -4°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
5 MPH
090° East
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
9°
Feels like -4°F
Clear
as of 9:52 PM CST
Rel. Humidity: 71%
Dew Point: 1°F
Visibility: 10 Miles
Flight Rule: VFR
Wind Data
9 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
5°
Clear
as of 10:35 PM CST
Rel. Humidity: 65%
Dew Point: -4°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Fog on Tonight Tonight... Patchy freezing fog. Partly cloudy, with a low around -1. Wind chill values between -9 and -14. South wind 7 to 10 mph, with gusts as high as 20 mph.
Morning Fog on Friday Friday... Patchy freezing fog before 9am. Mostly sunny, with a high near 31. Wind chill values between -9 and 1. South southwest wind around 11 mph, with gusts as high as 21 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 21. Southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 29. West northwest wind around 6 mph becoming calm in the morning.
70% chance of snow Saturday Night Saturday Night... Snow likely, mainly after midnight. Cloudy, with a low around 20. Light east wind becoming east northeast 5 to 9 mph in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 25. North wind 9 to 11 mph, with gusts as high as 18 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around -1. North wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 16 mph.
Partly Sunny on Monday Monday... Partly sunny, with a high near 24.
30% chance of snow Monday Night Monday Night... A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 16.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 34.
20% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow. Cloudy, with a low around 25.
20% chance of rain Wednesday Wednesday... A chance of rain. Mostly cloudy, with a high near 35.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 11.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 25.
Current Radar Image


Sun Almanac for Ontario, Illinois
Sunrise: 07:11 AM
Sunset: 4:33 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:11 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.