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Marengo, Illinois Weather Forecast
Marengo, Illinois Weather
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Weather Forecast for Marengo, Illinois : McHenry County
Issued: 5:11 am CST Nov 5, 2025 Latitude: 42.2486332 Longitude: -88.6084269 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Veterans Day
Partly Sunny on Today Mostly Clear on Tonight Increasing Clouds on Thursday 20% chance of rain on Friday 50% chance of rain on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Veterans Day
High: 57°F Low: 30°F High: 56°F High: 62°F High: 47°F High: 36°F High: 36°F High: 42°F
Low: 46°F Low: 34°F Low: 28°F Low: 20°F Low: 20°F  
Partly Sunny Mostly Clear Increasing Clouds Rain Rain Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
DE KALB TAYLOR MUNICIPAL - (KDKB)
52°
Clear
as of 4:55 AM CST
Rel. Humidity: 76%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.83 in.
Flight Rule: VFR
Wind Data
13 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
ROCKFORD - (KRFD)
50°
Mostly Cloudy
as of 4:54 AM CST
Rel. Humidity: 81%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
5 MPH
220° Southwest
Cloud Level(s): Broken at 25000ft
Current Conditions at
WEST CHICAGO - (KDPA)
52°
Clear
as of 4:52 AM CST
Rel. Humidity: 76%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.81 in.
Flight Rule: VFR
Wind Data
13 MPH
240° Southwest
Cloud Level(s): Clear
Partly Sunny on Today Today... Partly sunny, then gradually becoming sunny, with a high near 57. Breezy, with a west southwest wind 10 to 15 mph becoming north northwest 15 to 20 mph in the morning. Winds could gust as high as 35 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 30. West northwest wind 5 to 10 mph becoming light west after midnight.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 56. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

80% chance of rain Thursday Night Thursday Night... Showers, mainly after midnight. Low around 46. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

20% chance of rain Friday Friday... A 20 percent chance of showers before noon. Mostly sunny, with a high near 62. Southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 34.

50% chance of rain Saturday Saturday... A 50 percent chance of rain after noon. Partly sunny, with a high near 47.

20% chance of rain & snow Saturday Night Saturday Night... Rain likely before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 28.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 36.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 20.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 36.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 20.

Partly Sunny on Veterans Day Veterans Day... Partly sunny, with a high near 42.

Sun Almanac for Marengo, Illinois
Sunrise: 06:33 AM
Sunset: 4:43 PM
Civil Sunrise:06:04 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:30 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 04:58 AM
Astro Sunset: 6:18 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.