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Frederick, Illinois Weather Forecast
Frederick, Illinois Weather
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Weather Forecast for Frederick, Illinois : Schuyler County
Issued: 1:11 pm CST Dec 17, 2025 Latitude: 40.0700475 Longitude: -90.429014 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Sunny on This Afternoon 40% chance of rain on Tonight 100% chance of rain on Thursday Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
High: 46°F Low: 50 °F High: 37 °F High: 34°F High: 50°F High: 39°F High: 44°F High: 53°F
Low: 18°F Low: 27°F Low: 21°F Low: 26°F Low: 35°F  
Mostly Sunny Rain Rain Sunny Partly Sunny Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
43°
Clear
as of 12:55 PM CST
Rel. Humidity: 65%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
39°
Clear
as of 12:55 PM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
QUINCY - (KUIN)
43°
Clear
as of 12:54 PM CST
Rel. Humidity: 60%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 46. East southeast wind 3 to 6 mph.

40% chance of rain Tonight Tonight... A 40 percent chance of showers, mainly after 5am. Increasing clouds, with a temperature rising to around 50 by 5am. South wind 6 to 16 mph, with gusts as high as 29 mph.

100% chance of rain Thursday Thursday... Showers before noon. Temperature falling to around 37 by 5pm. Breezy, with a south wind 15 to 21 mph becoming west in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

30% chance of rain & snow Thursday Night Thursday Night... A chance of rain showers before 7pm, then a chance of snow showers between 7pm and midnight. Mostly cloudy, with a low around 18. Wind chill values between 5 and 15. Blustery, with a west northwest wind 11 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

Sunny on Friday Friday... Sunny, with a high near 34. West northwest wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

Increasing Clouds on Friday Night Friday Night... Increasing clouds, with a low around 27. South wind 9 to 11 mph, with gusts as high as 24 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 50. South wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 39.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 26.

Partly Sunny on Monday Monday... Partly sunny, with a high near 44.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 35.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 53.

Current Radar Image


Sun Almanac for Frederick, Illinois
Sunrise: 07:18 AM
Sunset: 4:38 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:16 PM
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