Hourly Weather Forecast - McHenry, IL

12 AM
16°F
20%
6mph
SSW
Cloudy
Humidity
63%
Feels like
7°F
Dew Point
6°F
1 AM
17°F
20%
5mph
SSW
Cloudy
Humidity
63%
Feels like
8°F
Dew Point
6°F
2 AM
17°F
30%
5mph
SSW
30% Chance of Flurries
Humidity
63%
Feels like
10°F
Dew Point
7°F
3 AM
18°F
30%
5mph
SSW
30% Chance of Flurries
Humidity
64%
Feels like
11°F
Dew Point
8°F
4 AM
19°F
20%
5mph
SSW
Cloudy
Humidity
64%
Feels like
12°F
Dew Point
9°F
5 AM
19°F
10%
5mph
SSW
Cloudy
Humidity
69%
Feels like
12°F
Dew Point
10°F
6 AM
19°F
10%
5mph
SW
Cloudy
Humidity
70%
Feels like
13°F
Dew Point
11°F
7 AM
20°F
10%
5mph
SW
Cloudy
Humidity
82%
Feels like
13°F
Dew Point
15°F
7:16 AM
8 AM
21°F
10%
6mph
WSW
Mostly Cloudy
Humidity
79%
Feels like
14°F
Dew Point
16°F
9 AM
23°F
10%
7mph
WSW
Mostly Cloudy
Humidity
77%
Feels like
14°F
Dew Point
17°F
10 AM
24°F
10%
8mph
W
Mostly Cloudy
Humidity
74%
Feels like
16°F
Dew Point
17°F
11 AM
26°F
10%
9mph
W
Mostly Cloudy
Humidity
71%
Feels like
17°F
Dew Point
18°F
12 PM
27°F
10%
10mph
W
Mostly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
18°F
1 PM
27°F
10%
10mph
W
Mostly Cloudy
Humidity
65%
Feels like
18°F
Dew Point
17°F
2 PM
27°F
10%
10mph
WNW
Partly Cloudy
Humidity
65%
Feels like
17°F
Dew Point
17°F
3 PM
26°F
10%
10mph
WNW
Partly Cloudy
Humidity
66%
Feels like
16°F
Dew Point
16°F
4 PM
24°F
10%
9mph
WNW
Mostly Cloudy
Humidity
70%
Feels like
15°F
Dew Point
16°F

Snow Forecast through Saturday

Multiple Snowy Systems Hit Great Lakes, Northeast

As one disturbance exits New England tonight, another will be quick on its heels in the Great Lakes on Friday.

Friday's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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