Hourly Weather Forecast - Mount Prospect, IL

12 AM
27°F
0%
15mph
WNW
Clear
Humidity
52%
Feels like
15°F
Dew Point
11°F
1 AM
26°F
0%
15mph
WNW
Clear
Humidity
50%
Feels like
13°F
Dew Point
10°F
2 AM
25°F
0%
15mph
WNW
Clear
Humidity
49%
Feels like
12°F
Dew Point
9°F
3 AM
24°F
0%
14mph
WNW
Clear
Humidity
49%
Feels like
12°F
Dew Point
8°F
4 AM
23°F
0%
13mph
WNW
Clear
Humidity
49%
Feels like
12°F
Dew Point
7°F
5 AM
22°F
0%
12mph
WNW
Clear
Humidity
50%
Feels like
11°F
Dew Point
6°F
6 AM
21°F
0%
11mph
WNW
Clear
Humidity
50%
Feels like
10°F
Dew Point
6°F
7 AM
20°F
0%
10mph
WNW
Clear
Humidity
51%
Feels like
9°F
Dew Point
5°F
7:16 AM
8 AM
20°F
0%
9mph
WNW
Sunny
Humidity
49%
Feels like
10°F
Dew Point
4°F
9 AM
22°F
0%
9mph
WNW
Sunny
Humidity
46%
Feels like
12°F
Dew Point
4°F
10 AM
23°F
0%
8mph
WNW
Sunny
Humidity
42%
Feels like
14°F
Dew Point
4°F
11 AM
26°F
0%
7mph
WNW
Sunny
Humidity
39%
Feels like
17°F
Dew Point
4°F
12 PM
27°F
0%
7mph
WNW
Sunny
Humidity
36%
Feels like
20°F
Dew Point
4°F
1 PM
29°F
0%
7mph
WNW
Sunny
Humidity
35%
Feels like
22°F
Dew Point
4°F
2 PM
29°F
0%
6mph
WNW
Sunny
Humidity
35%
Feels like
23°F
Dew Point
5°F
3 PM
29°F
0%
6mph
WNW
Sunny
Humidity
36%
Feels like
23°F
Dew Point
6°F
4 PM
29°F
0%
5mph
W
Sunny
Humidity
39%
Feels like
23°F
Dew Point
7°F
4:23 PM
5 PM
28°F
0%
4mph
W
Clear
Humidity
42%
Feels like
23°F
Dew Point
8°F
6 PM
27°F
0%
4mph
W
Clear
Humidity
44%
Feels like
23°F
Dew Point
8°F
7 PM
27°F
0%
4mph
W
Mostly Clear
Humidity
46%
Feels like
22°F
Dew Point
9°F
8 PM
27°F
10%
5mph
WSW
Partly Cloudy
Humidity
47%
Feels like
21°F
Dew Point
9°F
9 PM
26°F
30%
6mph
WSW
30% Chance Snow Showers
Humidity
49%
Feels like
20°F
Dew Point
10°F
10 PM
26°F
30%
6mph
SW
30% Chance of Snow
Humidity
51%
Feels like
19°F
Dew Point
11°F
11 PM
26°F
20%
6mph
SSW
Cloudy
Humidity
53%
Feels like
19°F
Dew Point
11°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

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

Wednesday's Weather Outlook

Today'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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