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Deer Grove, Illinois Weather Forecast
Deer Grove, Illinois Weather
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Weather Forecast for Deer Grove, Illinois : Whiteside County
Issued: 4:21 am CST Dec 7, 2025 Latitude: 41.607811 Longitude: -89.689547 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
60% chance of snow on Overnight 40% chance of snow on Sunday Partly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday 30% chance of snow on Thursday Partly Sunny on Friday Partly Sunny on Saturday
Low: 28°F High: 12 °F High: 24°F High: 39°F High: 36°F High: 25°F High: 14°F High: 11°F
Low: 2 °F Low: 16°F Low: 29°F Low: 17°F Low: 5°F Low: -3°F  
Snow Snow Partly Sunny Partly Sunny Mostly Cloudy Snow Partly Sunny Partly Sunny
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Current Conditions at
STERLING ROCK - (KSQI)
27°
Feels like 17°F
Clear
Light Snow Mist
as of 4:56 AM CST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 2 1/2 Miles
Pressure: 30.00 in.
Flight Rule: IFR
Wind Data
9 MPH
030° Northeast
Cloud Level(s): Clear
Current Conditions at
PERU - (KVYS)
30°
Feels like 19°F
Cloudy
Light Drizzle
as of 4:55 AM CST
Rel. Humidity: 92%
Dew Point: 28°F
Visibility: 5 Miles
Pressure: 29.97 in.
Flight Rule: IFR
Wind Data
15 MPH
040° Northeast
Cloud Level(s): Solid Overcast at 600ft
60% chance of snow Overnight Overnight... Snow likely. Cloudy, with a steady temperature around 28. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 2 to 4 inches possible.

40% chance of snow Sunday Sunday... A 40 percent chance of snow, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 12 by 5pm. Wind chill values as low as zero. North wind 10 to 15 mph, with gusts as high as 25 mph.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 2. Wind chill values as low as -10. North wind around 5 mph becoming calm after midnight.

Partly Sunny on Monday Monday... Partly sunny, with a high near 24. Calm wind becoming south around 5 mph in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 16.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 39.

60% chance of rain Tuesday Night Tuesday Night... Rain likely, mainly before midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 36.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 17.

30% chance of snow Thursday Thursday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 25.

30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 5.

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 -3.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 11.

Sun Almanac for Deer Grove, Illinois
Sunrise: 07:12 AM
Sunset: 4:28 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:08 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.