Hourly Weather Forecast - Mount Prospect, IL

12 AM
8°F
0%
9mph
SW
Mostly Cloudy
Humidity
64%
Feels like
-6°F
Dew Point
-2°F
1 AM
8°F
0%
10mph
SW
Mostly Cloudy
Humidity
62%
Feels like
-6°F
Dew Point
-2°F
2 AM
8°F
0%
11mph
SW
Cloudy
Humidity
61%
Feels like
-6°F
Dew Point
-3°F
3 AM
8°F
0%
11mph
SW
Cloudy
Humidity
61%
Feels like
-7°F
Dew Point
-3°F
4 AM
8°F
0%
12mph
SSW
Cloudy
Humidity
61%
Feels like
-7°F
Dew Point
-3°F
5 AM
8°F
0%
13mph
SSW
Cloudy
Humidity
62%
Feels like
-8°F
Dew Point
-2°F
6 AM
8°F
0%
13mph
SSW
Cloudy
Humidity
62%
Feels like
-7°F
Dew Point
-2°F
7 AM
10°F
0%
13mph
SSW
Cloudy
Humidity
61%
Feels like
-6°F
Dew Point
-1°F
7:12 AM
8 AM
11°F
0%
14mph
SSW
Cloudy
Humidity
61%
Feels like
-5°F
Dew Point
0°F
9 AM
13°F
0%
14mph
SW
Cloudy
Humidity
59%
Feels like
-2°F
Dew Point
2°F
10 AM
16°F
0%
14mph
SW
Cloudy
Humidity
59%
Feels like
1°F
Dew Point
4°F
11 AM
19°F
0%
14mph
SW
Cloudy
Humidity
57%
Feels like
5°F
Dew Point
6°F
12 PM
21°F
0%
14mph
SW
Cloudy
Humidity
57%
Feels like
8°F
Dew Point
8°F
1 PM
22°F
0%
13mph
SW
Cloudy
Humidity
57%
Feels like
10°F
Dew Point
10°F
2 PM
23°F
0%
11mph
WSW
Cloudy
Humidity
60%
Feels like
12°F
Dew Point
11°F
3 PM
24°F
0%
10mph
WSW
Mostly Cloudy
Humidity
63%
Feels like
14°F
Dew Point
13°F
4 PM
24°F
0%
9mph
WSW
Partly Cloudy
Humidity
67%
Feels like
14°F
Dew Point
14°F
4:20 PM
5 PM
24°F
0%
8mph
WSW
Partly Cloudy
Humidity
70%
Feels like
15°F
Dew Point
15°F
6 PM
24°F
0%
7mph
WSW
Partly Cloudy
Humidity
72%
Feels like
16°F
Dew Point
16°F
7 PM
24°F
0%
6mph
WSW
Partly Cloudy
Humidity
75%
Feels like
16°F
Dew Point
17°F
8 PM
24°F
0%
6mph
WSW
Partly Cloudy
Humidity
75%
Feels like
17°F
Dew Point
17°F
9 PM
23°F
0%
5mph
WSW
Partly Cloudy
Humidity
77%
Feels like
16°F
Dew Point
17°F
10 PM
22°F
0%
5mph
WSW
Mostly Clear
Humidity
78%
Feels like
16°F
Dew Point
17°F
11 PM
22°F
0%
4mph
WSW
Mostly Clear
Humidity
78%
Feels like
16°F
Dew Point
16°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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