Hourly Weather Forecast - Prospect Heights, IL

12 AM
21°F
0%
4mph
WSW
Clear
Humidity
80%
Feels like
15°F
Dew Point
16°F
1 AM
20°F
0%
4mph
SW
Clear
Humidity
80%
Feels like
15°F
Dew Point
15°F
2 AM
20°F
0%
4mph
SW
Mostly Clear
Humidity
80%
Feels like
14°F
Dew Point
15°F
3 AM
20°F
0%
4mph
SW
Mostly Clear
Humidity
80%
Feels like
13°F
Dew Point
15°F
4 AM
20°F
0%
5mph
SSW
Mostly Clear
Humidity
80%
Feels like
13°F
Dew Point
15°F
5 AM
20°F
0%
5mph
SSW
Mostly Clear
Humidity
81%
Feels like
13°F
Dew Point
15°F
6 AM
20°F
0%
6mph
SSW
Mostly Clear
Humidity
80%
Feels like
13°F
Dew Point
15°F
7 AM
22°F
0%
6mph
SSW
Mostly Clear
Humidity
80%
Feels like
14°F
Dew Point
17°F
7:13 AM
8 AM
24°F
0%
7mph
SSW
Mostly Sunny
Humidity
79%
Feels like
15°F
Dew Point
18°F
9 AM
26°F
0%
8mph
SSW
Mostly Sunny
Humidity
76%
Feels like
18°F
Dew Point
20°F
10 AM
29°F
0%
9mph
SSW
Mostly Sunny
Humidity
74%
Feels like
20°F
Dew Point
21°F
11 AM
31°F
0%
10mph
SSW
Mostly Sunny
Humidity
71%
Feels like
23°F
Dew Point
23°F
12 PM
33°F
0%
11mph
SSW
Partly Cloudy
Humidity
69%
Feels like
25°F
Dew Point
24°F
1 PM
34°F
0%
11mph
SSW
Mostly Sunny
Humidity
70%
Feels like
26°F
Dew Point
25°F
2 PM
35°F
0%
12mph
SSW
Mostly Sunny
Humidity
72%
Feels like
26°F
Dew Point
26°F
3 PM
35°F
0%
13mph
SSW
Mostly Sunny
Humidity
75%
Feels like
26°F
Dew Point
28°F
4 PM
35°F
0%
13mph
SW
Mostly Sunny
Humidity
78%
Feels like
26°F
Dew Point
28°F
4:21 PM
5 PM
35°F
0%
13mph
SW
Mostly Clear
Humidity
81%
Feels like
26°F
Dew Point
29°F
6 PM
35°F
0%
14mph
SW
Partly Cloudy
Humidity
82%
Feels like
26°F
Dew Point
30°F
7 PM
35°F
0%
14mph
SW
Partly Cloudy
Humidity
83%
Feels like
26°F
Dew Point
31°F
8 PM
36°F
0%
14mph
SW
Partly Cloudy
Humidity
85%
Feels like
27°F
Dew Point
32°F
9 PM
37°F
0%
14mph
SW
Partly Cloudy
Humidity
86%
Feels like
28°F
Dew Point
33°F
10 PM
37°F
0%
14mph
SW
Partly Cloudy
Humidity
87%
Feels like
29°F
Dew Point
34°F
11 PM
38°F
0%
13mph
WSW
Mostly Cloudy
Humidity
87%
Feels like
30°F
Dew Point
34°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend 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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