Hourly Weather Forecast - Prospect Heights, IL

12 AM
21°F
10%
17mph
W
Mostly Clear
Humidity
66%
Feels like
7°F
Dew Point
11°F
1 AM
20°F
10%
16mph
W
Clear
Humidity
66%
Feels like
5°F
Dew Point
10°F
2 AM
19°F
10%
15mph
WNW
Mostly Clear
Humidity
66%
Feels like
5°F
Dew Point
10°F
3 AM
19°F
10%
14mph
WNW
Mostly Clear
Humidity
64%
Feels like
5°F
Dew Point
9°F
4 AM
19°F
10%
13mph
WNW
Mostly Clear
Humidity
61%
Feels like
6°F
Dew Point
8°F
5 AM
19°F
0%
12mph
WNW
Clear
Humidity
59%
Feels like
6°F
Dew Point
7°F
6 AM
18°F
0%
11mph
WNW
Clear
Humidity
58%
Feels like
6°F
Dew Point
6°F
7 AM
17°F
0%
10mph
WNW
Clear
Humidity
54%
Feels like
5°F
Dew Point
4°F
7:15 AM
8 AM
17°F
10%
10mph
WNW
Sunny
Humidity
55%
Feels like
5°F
Dew Point
4°F
9 AM
18°F
10%
11mph
WNW
Sunny
Humidity
53%
Feels like
6°F
Dew Point
4°F
10 AM
19°F
10%
11mph
W
Sunny
Humidity
52%
Feels like
7°F
Dew Point
4°F
11 AM
20°F
10%
10mph
W
Sunny
Humidity
52%
Feels like
8°F
Dew Point
5°F
12 PM
20°F
10%
10mph
WSW
Sunny
Humidity
51%
Feels like
10°F
Dew Point
6°F
1 PM
21°F
10%
10mph
SW
Sunny
Humidity
52%
Feels like
11°F
Dew Point
6°F
2 PM
22°F
10%
9mph
SSW
Sunny
Humidity
52%
Feels like
12°F
Dew Point
7°F
3 PM
23°F
10%
9mph
SSW
Sunny
Humidity
53%
Feels like
13°F
Dew Point
8°F
4 PM
23°F
10%
9mph
S
Mostly Sunny
Humidity
55%
Feels like
13°F
Dew Point
9°F
4:22 PM
5 PM
23°F
10%
9mph
S
Mostly Clear
Humidity
59%
Feels like
13°F
Dew Point
10°F
6 PM
22°F
10%
9mph
S
Partly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
11°F
7 PM
21°F
10%
10mph
S
Partly Cloudy
Humidity
64%
Feels like
10°F
Dew Point
11°F
8 PM
21°F
10%
11mph
S
Partly Cloudy
Humidity
65%
Feels like
10°F
Dew Point
11°F
9 PM
22°F
10%
11mph
S
Partly Cloudy
Humidity
67%
Feels like
10°F
Dew Point
12°F
10 PM
22°F
10%
11mph
S
Partly Cloudy
Humidity
68%
Feels like
11°F
Dew Point
13°F
11 PM
22°F
10%
12mph
S
Mostly Cloudy
Humidity
68%
Feels like
11°F
Dew Point
14°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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