Hourly Weather Forecast - McHenry, IL

12 AM
40°F
20%
8mph
SSE
Cloudy
Humidity
69%
Feels like
35°F
Dew Point
31°F
1 AM
40°F
20%
8mph
SSE
Cloudy
Humidity
73%
Feels like
35°F
Dew Point
33°F
2 AM
41°F
20%
9mph
SSE
Mostly Cloudy
Humidity
76%
Feels like
35°F
Dew Point
34°F
3 AM
42°F
20%
9mph
S
Mostly Cloudy
Humidity
75%
Feels like
36°F
Dew Point
35°F
4 AM
43°F
30%
9mph
S
30% Chance Rain Showers
Humidity
74%
Feels like
37°F
Dew Point
35°F
5 AM
44°F
30%
10mph
S
30% Chance of Light Rain
Humidity
75%
Feels like
38°F
Dew Point
36°F
6 AM
44°F
30%
10mph
S
30% Chance of Light Rain
Humidity
76%
Feels like
39°F
Dew Point
37°F
6:46 AM
7 AM
46°F
30%
11mph
S
30% Chance of Light Rain
Humidity
74%
Feels like
41°F
Dew Point
38°F
8 AM
49°F
30%
11mph
SSW
30% Chance of Light Rain
Humidity
70%
Feels like
44°F
Dew Point
40°F
9 AM
53°F
30%
11mph
SSW
30% Chance of Light Rain
Humidity
65%
Feels like
53°F
Dew Point
41°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Today's Weather Outlook

Today's Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

(Image provided by Pixabay.com)

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