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Marcus, Illinois Weather Forecast
Marcus, Illinois Weather
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Weather Forecast for Marcus, Illinois : Carroll County
Issued: 3:16 am CST Dec 21, 2025 Latitude: 42.1583536 Longitude: -90.1959617 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday
Sunny on Today Increasing Clouds on Tonight Mostly Cloudy on Monday Partly Sunny on Tuesday Cloudy on Wednesday Cloudy on Christmas Day Mostly Cloudy on Friday Mostly Cloudy on Saturday
High: 29°F Low: 27 °F High: 40°F High: 43°F High: 45°F High: 50°F High: 41°F High: 41°F
Low: 33°F Low: 28°F Low: 38°F Low: 33°F Low: 28°F  
Sunny Increasing Clouds Mostly Cloudy Partly Sunny Cloudy Cloudy Mostly Cloudy Mostly Cloudy
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Current Conditions at
SAVANNA - (KSFY)
18°
Clear
as of 4:15 AM CST
Rel. Humidity: 61%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.34 in.
Flight Rule: VFR
Wind Data
6 MPH
340° North
Cloud Level(s): Clear
Current Conditions at
CLINTON - (KCWI)
16°
Clear
as of 3:56 AM CST
Rel. Humidity: 78%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.34 in.
Flight Rule: VFR
Wind Data
3 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
DUBUQUE - (KDBQ)
12°
Clear
as of 3:53 AM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
6 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
ALBERTUS AIRPORT - (KFEP)
16°
Clear
as of 4:15 AM CST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.33 in.
Flight Rule: VFR
Wind Data
7 MPH
320° Northwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 29. Calm wind becoming south around 5 mph in the afternoon.

Increasing Clouds on Tonight Tonight... Increasing clouds, with a temperature rising to around 27 by 3am. South wind 5 to 10 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 40. South wind 5 to 10 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 33. South wind around 5 mph becoming west after midnight.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 43.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 28.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 45.

Cloudy on Wednesday Night Wednesday Night... Cloudy, with a low around 38.

Cloudy on Christmas Day Christmas Day... Cloudy, with a high near 50.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 33.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 41.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 28.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 41.

Current Radar Image


Sun Almanac for Marcus, Illinois
Sunrise: 07:26 AM
Sunset: 4:32 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:04 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:13 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.