Hourly Weather Forecast - Mount Prospect, IL

4:19 PM
5 PM
34°F
70%
8mph
SSW
70% Chance of Light Rain
Humidity
86%
Feels like
27°F
Dew Point
30°F
6 PM
34°F
40%
9mph
S
40% Chance of Light Rain
Humidity
88%
Feels like
27°F
Dew Point
31°F
7 PM
35°F
60%
10mph
S
60% Chance of Light Rain
Humidity
88%
Feels like
27°F
Dew Point
32°F
8 PM
36°F
60%
12mph
S
60% Chance of Light Rain
Humidity
87%
Feels like
27°F
Dew Point
32°F
9 PM
37°F
70%
14mph
S
70% Chance of Light Rain
Humidity
86%
Feels like
28°F
Dew Point
33°F
10 PM
37°F
80%
16mph
SSW
80% Chance of Light Rain
Humidity
85%
Feels like
28°F
Dew Point
33°F
11 PM
38°F
50%
17mph
SW
50% Chance of Rain
Humidity
84%
Feels like
29°F
Dew Point
34°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Outdoor Sports Guide