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Oneco, Illinois Weather Forecast
Oneco, Illinois Weather
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Weather Forecast for Oneco, Illinois : Stephenson County
Issued: 4:21 am CST Dec 7, 2025 Latitude: 42.487511 Longitude: -89.6642856 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of snow on Today Increasing Clouds on Tonight Mostly Cloudy on Monday Mostly Cloudy on Tuesday Mostly Cloudy on Wednesday 30% chance of snow on Thursday Partly Sunny on Friday Partly Sunny on Saturday
High: 21 °F Low: 1 °F High: 22°F High: 37°F High: 34°F High: 23°F High: 14°F High: 9°F
Low: 16°F Low: 28°F Low: 13°F Low: 4°F Low: -4°F  
Snow Increasing Clouds Mostly Cloudy Mostly Cloudy Mostly Cloudy Snow Partly Sunny Partly Sunny
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Current Conditions at
MONROE - (KEFT)
21°
Feels like 9°F
Cloudy
as of 7:15 AM CST
Rel. Humidity: 92%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: IFR
Wind Data
12 MPH
010° North
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
JANESVILLE - (KJVL)
21°
Feels like 10°F
Partly Cloudy
as of 6:45 AM CST
Rel. Humidity: 92%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
9 MPH
010° North
Cloud Level(s): Scattered at 11000ft
Current Conditions at
ROCKFORD - (KRFD)
25°
Feels like 12°F
Cloudy
Light Snow
as of 6:54 AM CST
Rel. Humidity: 85%
Dew Point: 21°F
Visibility: 8 Miles
Pressure: 30.09 in.
Flight Rule: MVFR
Wind Data
14 MPH
0° North
Cloud Level(s): Few at 1000ft, Solid Overcast at 1900ft
20% chance of snow Today Today... A 20 percent chance of snow before 8am. Mostly sunny, with a temperature rising to near 21 by noon, then falling to around 7 during the remainder of the day. Wind chill values as low as -5. North wind 10 to 15 mph, with gusts as high as 25 mph.

Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 1. Wind chill values as low as -10. North wind 5 to 10 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 22. Wind chill values as low as zero. East wind 5 to 10 mph becoming south in the morning.

30% chance of snow Monday Night Monday Night... A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 16. South wind 10 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 37.

80% chance of rain & snow Tuesday Night Tuesday Night... Rain before 3am, then a chance of rain and snow. Low around 28. Chance of precipitation is 80%. Little or no snow accumulation expected.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 34.

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

30% chance of snow Thursday Thursday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 23.

30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 4.

Partly Sunny on Friday Friday... Partly sunny, with a high near 14.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -4.

Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 9.

Current Radar Image


Sun Almanac for Oneco, Illinois
Sunrise: 07:15 AM
Sunset: 4:26 PM
Civil Sunrise:06:43 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:34 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.