Hourly Weather Forecast - Mount Prospect, IL

12 AM
24°F
20%
6mph
S
Cloudy
Humidity
61%
Feels like
16°F
Dew Point
12°F
1 AM
24°F
20%
7mph
S
Cloudy
Humidity
59%
Feels like
16°F
Dew Point
12°F
2 AM
25°F
20%
7mph
S
Cloudy
Humidity
59%
Feels like
17°F
Dew Point
13°F
3 AM
26°F
30%
7mph
S
30 % Chance of Heavy Snow
Humidity
59%
Feels like
18°F
Dew Point
14°F
4 AM
27°F
30%
7mph
S
30 % Chance of Heavy Snow
Humidity
60%
Feels like
19°F
Dew Point
15°F
5 AM
27°F
30%
7mph
S
30 % Chance of Heavy Snow
Humidity
62%
Feels like
19°F
Dew Point
16°F
6 AM
27°F
30%
8mph
S
30 % Chance of Heavy Snow
Humidity
63%
Feels like
19°F
Dew Point
16°F
7 AM
27°F
30%
8mph
S
30 % Chance of Heavy Snow
Humidity
64%
Feels like
19°F
Dew Point
17°F
7:17 AM
8 AM
29°F
30%
8mph
S
30% Chance of Heavy Snow
Humidity
62%
Feels like
21°F
Dew Point
17°F
9 AM
31°F
10%
8mph
S
Mostly Cloudy
Humidity
59%
Feels like
24°F
Dew Point
19°F
10 AM
34°F
10%
9mph
S
Mostly Cloudy
Humidity
55%
Feels like
27°F
Dew Point
19°F
11 AM
36°F
10%
9mph
S
Cloudy
Humidity
50%
Feels like
29°F
Dew Point
19°F
12 PM
37°F
10%
9mph
S
Cloudy
Humidity
48%
Feels like
31°F
Dew Point
20°F
1 PM
38°F
10%
8mph
S
Cloudy
Humidity
46%
Feels like
32°F
Dew Point
20°F
2 PM
39°F
10%
8mph
SSE
Cloudy
Humidity
46%
Feels like
33°F
Dew Point
20°F
3 PM
39°F
10%
8mph
SSE
Mostly Cloudy
Humidity
47%
Feels like
33°F
Dew Point
20°F
4 PM
38°F
10%
8mph
SSE
Mostly Cloudy
Humidity
50%
Feels like
32°F
Dew Point
21°F
4:23 PM
5 PM
37°F
10%
8mph
S
Partly Cloudy
Humidity
53%
Feels like
31°F
Dew Point
22°F
6 PM
37°F
10%
8mph
S
Partly Cloudy
Humidity
58%
Feels like
31°F
Dew Point
24°F
7 PM
37°F
10%
8mph
S
Partly Cloudy
Humidity
60%
Feels like
31°F
Dew Point
25°F
8 PM
38°F
10%
9mph
S
Mostly Cloudy
Humidity
60%
Feels like
32°F
Dew Point
25°F
9 PM
38°F
10%
9mph
S
Mostly Cloudy
Humidity
62%
Feels like
32°F
Dew Point
26°F
10 PM
38°F
10%
8mph
S
Mostly Cloudy
Humidity
65%
Feels like
32°F
Dew Point
28°F
11 PM
38°F
10%
8mph
S
Partly Cloudy
Humidity
70%
Feels like
32°F
Dew Point
29°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday's 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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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