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Harvard, Illinois Weather Forecast
Harvard, Illinois Weather
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Weather Forecast for Harvard, Illinois : McHenry County
Issued: 12:26 am CST Dec 21, 2025 Latitude: 42.422241 Longitude: -88.6137101 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Clear on Overnight Sunny on Sunday Cloudy on Monday Partly Sunny on Tuesday 20% chance of rain on Wednesday 20% chance of  on Christmas Day Mostly Cloudy on Friday Partly Sunny on Saturday
Low: 11°F High: 26°F High: 38°F High: 42°F High: 41°F High: 50°F High: 43°F High: 39°F
Low: 27 °F Low: 33°F Low: 28°F Low: 40°F Low: 34°F Low: 30°F  
Clear Sunny Cloudy Partly Sunny Rain Cloudy Mostly Cloudy Partly Sunny
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Current Conditions at
BURLINGTON MUNICIPAL AIR - (KBUU)
19°
Feels like 6°F
Clear
as of 12:55 AM CST
Rel. Humidity: 62%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
14 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
JANESVILLE - (KJVL)
19°
Feels like 7°F
Clear
as of 12:50 AM CST
Rel. Humidity: 73%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
10 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
ROCKFORD - (KRFD)
21°
Feels like 8°F
Clear
as of 12:54 AM CST
Rel. Humidity: 62%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
13 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
DE KALB TAYLOR MUNICIPAL - (KDKB)
23°
Feels like 8°F
Clear
as of 12:55 AM CST
Rel. Humidity: 62%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 24 MPH
310° Northwest
Cloud Level(s): Clear
Clear on Overnight Overnight... Clear, with a low around 11. Wind chill values as low as -1. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

Sunny on Sunday Sunday... Sunny, with a high near 26. Wind chill values as low as 1. Northwest wind around 5 mph becoming south southwest in the afternoon. Winds could gust as high as 10 mph.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a temperature rising to around 27 by 4am. South wind 5 to 10 mph, with gusts as high as 15 mph.

Cloudy on Monday Monday... Cloudy, with a high near 38. South wind 10 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 33. South wind around 5 mph becoming west after midnight. Winds could gust as high as 15 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 42.

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

20% chance of rain Wednesday Wednesday... A chance of rain between noon and 3pm, then a chance of rain or drizzle after 3pm. Cloudy, with a high near 41.

20% chance of rain Wednesday Night Wednesday Night... A chance of rain or drizzle before midnight, then a chance of drizzle after midnight. Cloudy, with a low around 40.

20% chance of  Christmas Day Christmas Day... A chance of drizzle. Cloudy, with a high near 50.

20% chance of  Thursday Night Thursday Night... A chance of drizzle. Mostly cloudy, with a low around 34.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 43.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 30.

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

Current Radar Image


Sun Almanac for Harvard, Illinois
Sunrise: 07:21 AM
Sunset: 4:25 PM
Civil Sunrise:06:49 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:07 PM
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