Hourly Weather Forecast - Mount Prospect, IL

12 AM
38°F
0%
12mph
WSW
Cloudy
Humidity
88%
Feels like
30°F
Dew Point
35°F
1 AM
38°F
0%
12mph
WSW
Cloudy
Humidity
87%
Feels like
30°F
Dew Point
34°F
2 AM
37°F
0%
11mph
WSW
Cloudy
Humidity
87%
Feels like
30°F
Dew Point
34°F
3 AM
37°F
0%
11mph
W
Cloudy
Humidity
87%
Feels like
30°F
Dew Point
33°F
4 AM
36°F
0%
10mph
W
Mostly Cloudy
Humidity
86%
Feels like
29°F
Dew Point
33°F
5 AM
35°F
0%
9mph
W
Partly Cloudy
Humidity
86%
Feels like
28°F
Dew Point
32°F
6 AM
35°F
10%
9mph
W
Partly Cloudy
Humidity
83%
Feels like
28°F
Dew Point
30°F
7 AM
34°F
0%
8mph
W
Partly Cloudy
Humidity
81%
Feels like
27°F
Dew Point
29°F
7:14 AM
8 AM
34°F
0%
7mph
W
Partly Cloudy
Humidity
77%
Feels like
28°F
Dew Point
28°F
9 AM
35°F
0%
6mph
W
Partly Cloudy
Humidity
72%
Feels like
29°F
Dew Point
27°F
10 AM
35°F
0%
5mph
WNW
Partly Cloudy
Humidity
69%
Feels like
31°F
Dew Point
26°F
11 AM
36°F
0%
5mph
WNW
Partly Cloudy
Humidity
65%
Feels like
32°F
Dew Point
26°F
12 PM
37°F
0%
4mph
W
Mostly Cloudy
Humidity
62%
Feels like
33°F
Dew Point
25°F
1 PM
37°F
0%
4mph
WSW
Mostly Cloudy
Humidity
62%
Feels like
33°F
Dew Point
25°F
2 PM
36°F
0%
4mph
SSW
Mostly Cloudy
Humidity
63%
Feels like
33°F
Dew Point
25°F
3 PM
36°F
0%
5mph
S
Partly Cloudy
Humidity
66%
Feels like
32°F
Dew Point
26°F
4 PM
35°F
0%
6mph
SSE
Partly Cloudy
Humidity
70%
Feels like
30°F
Dew Point
26°F
4:21 PM
5 PM
34°F
0%
7mph
SSE
Mostly Clear
Humidity
75%
Feels like
28°F
Dew Point
27°F
6 PM
33°F
0%
8mph
SSE
Mostly Clear
Humidity
79%
Feels like
26°F
Dew Point
27°F
7 PM
32°F
10%
9mph
SSE
Mostly Clear
Humidity
83%
Feels like
24°F
Dew Point
28°F
8 PM
33°F
10%
11mph
SSE
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
28°F
9 PM
33°F
10%
11mph
SSE
Mostly Cloudy
Humidity
86%
Feels like
24°F
Dew Point
29°F
10 PM
34°F
10%
12mph
S
Cloudy
Humidity
87%
Feels like
25°F
Dew Point
30°F
11 PM
35°F
10%
13mph
S
Cloudy
Humidity
88%
Feels like
26°F
Dew Point
31°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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