Hourly Weather Forecast - McHenry, IL

12 AM
22°F
10%
14mph
WNW
Cloudy
Humidity
72%
Feels like
9°F
Dew Point
14°F
1 AM
20°F
10%
13mph
WNW
Cloudy
Humidity
71%
Feels like
7°F
Dew Point
12°F
2 AM
18°F
10%
13mph
WNW
Mostly Cloudy
Humidity
69%
Feels like
5°F
Dew Point
10°F
3 AM
17°F
0%
12mph
WNW
Mostly Cloudy
Humidity
67%
Feels like
4°F
Dew Point
8°F
4 AM
16°F
0%
11mph
WNW
Mostly Cloudy
Humidity
66%
Feels like
3°F
Dew Point
7°F
5 AM
15°F
0%
10mph
WNW
Mostly Cloudy
Humidity
66%
Feels like
3°F
Dew Point
6°F
6 AM
14°F
0%
9mph
WNW
Mostly Cloudy
Humidity
66%
Feels like
2°F
Dew Point
5°F
7 AM
14°F
0%
9mph
NW
Partly Cloudy
Humidity
65%
Feels like
2°F
Dew Point
4°F
7:17 AM
8 AM
14°F
0%
8mph
WNW
Partly Cloudy
Humidity
63%
Feels like
3°F
Dew Point
4°F
9 AM
15°F
0%
8mph
WNW
Mostly Sunny
Humidity
59%
Feels like
4°F
Dew Point
3°F
10 AM
16°F
0%
7mph
WNW
Sunny
Humidity
56%
Feels like
6°F
Dew Point
3°F
11 AM
18°F
0%
8mph
W
Sunny
Humidity
54%
Feels like
8°F
Dew Point
4°F
12 PM
19°F
10%
7mph
WSW
Sunny
Humidity
51%
Feels like
9°F
Dew Point
4°F
1 PM
19°F
10%
7mph
WSW
Sunny
Humidity
50%
Feels like
10°F
Dew Point
4°F
2 PM
20°F
10%
7mph
SW
Sunny
Humidity
51%
Feels like
11°F
Dew Point
4°F
3 PM
20°F
10%
7mph
SSW
Sunny
Humidity
53%
Feels like
11°F
Dew Point
5°F
4 PM
19°F
10%
7mph
SSW
Mostly Sunny
Humidity
55%
Feels like
10°F
Dew Point
6°F
4:22 PM
5 PM
19°F
10%
7mph
S
Partly Cloudy
Humidity
59%
Feels like
10°F
Dew Point
7°F
6 PM
19°F
10%
7mph
S
Partly Cloudy
Humidity
61%
Feels like
10°F
Dew Point
8°F
7 PM
20°F
10%
8mph
S
Partly Cloudy
Humidity
65%
Feels like
10°F
Dew Point
10°F
8 PM
20°F
10%
9mph
S
Mostly Cloudy
Humidity
66%
Feels like
10°F
Dew Point
11°F
9 PM
20°F
10%
9mph
S
Mostly Cloudy
Humidity
67%
Feels like
10°F
Dew Point
11°F
10 PM
21°F
10%
10mph
S
Mostly Cloudy
Humidity
69%
Feels like
10°F
Dew Point
13°F
11 PM
22°F
0%
10mph
S
Cloudy
Humidity
70%
Feels like
11°F
Dew Point
13°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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