Hourly Weather Forecast - McHenry, IL

12 AM
37°F
10%
11mph
WSW
Cloudy
Humidity
92%
Feels like
29°F
Dew Point
35°F
1 AM
36°F
10%
10mph
W
Cloudy
Humidity
92%
Feels like
29°F
Dew Point
34°F
2 AM
36°F
0%
9mph
W
Mostly Cloudy
Humidity
91%
Feels like
29°F
Dew Point
33°F
3 AM
35°F
0%
8mph
W
Partly Cloudy
Humidity
91%
Feels like
29°F
Dew Point
33°F
4 AM
35°F
0%
7mph
W
Mostly Cloudy
Humidity
90%
Feels like
29°F
Dew Point
32°F
5 AM
34°F
0%
6mph
W
Cloudy
Humidity
91%
Feels like
29°F
Dew Point
32°F
6 AM
34°F
0%
6mph
W
Cloudy
Humidity
90%
Feels like
29°F
Dew Point
31°F
7 AM
34°F
0%
5mph
W
Mostly Cloudy
Humidity
89%
Feels like
30°F
Dew Point
31°F
7:16 AM
8 AM
35°F
0%
5mph
W
Partly Cloudy
Humidity
87%
Feels like
31°F
Dew Point
31°F
9 AM
35°F
0%
4mph
W
Partly Cloudy
Humidity
83%
Feels like
32°F
Dew Point
31°F
10 AM
36°F
0%
4mph
W
Partly Cloudy
Humidity
80%
Feels like
33°F
Dew Point
31°F
11 AM
37°F
0%
4mph
W
Partly Cloudy
Humidity
77%
Feels like
34°F
Dew Point
30°F
12 PM
37°F
0%
4mph
WSW
Partly Cloudy
Humidity
74%
Feels like
34°F
Dew Point
30°F
1 PM
37°F
0%
4mph
SW
Partly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
30°F
2 PM
37°F
0%
4mph
SSW
Mostly Sunny
Humidity
75%
Feels like
34°F
Dew Point
30°F
3 PM
36°F
0%
5mph
S
Mostly Sunny
Humidity
78%
Feels like
32°F
Dew Point
30°F
4 PM
35°F
0%
5mph
S
Mostly Sunny
Humidity
81%
Feels like
30°F
Dew Point
30°F
4:21 PM
5 PM
34°F
0%
6mph
S
Mostly Clear
Humidity
86%
Feels like
28°F
Dew Point
30°F
6 PM
33°F
0%
7mph
S
Mostly Clear
Humidity
88%
Feels like
27°F
Dew Point
30°F
7 PM
34°F
0%
8mph
SSE
Partly Cloudy
Humidity
91%
Feels like
27°F
Dew Point
31°F
8 PM
34°F
0%
10mph
SSE
Partly Cloudy
Humidity
91%
Feels like
27°F
Dew Point
32°F
9 PM
35°F
0%
11mph
S
Mostly Cloudy
Humidity
91%
Feels like
27°F
Dew Point
33°F
10 PM
36°F
0%
12mph
S
Mostly Cloudy
Humidity
91%
Feels like
28°F
Dew Point
34°F
11 PM
37°F
0%
13mph
S
Mostly Cloudy
Humidity
92%
Feels like
29°F
Dew Point
35°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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