Hourly Weather Forecast - Mount Prospect, IL

9 AM
46°F
100%
5mph
SSE
Light Rain
Humidity
100%
Feels like
44°F
Dew Point
46°F
10 AM
47°F
100%
4mph
SSE
Rain
Humidity
100%
Feels like
45°F
Dew Point
47°F
11 AM
48°F
100%
4mph
E
Rain
Humidity
100%
Feels like
47°F
Dew Point
48°F
12 PM
49°F
90%
4mph
ENE
Light Rain
Humidity
100%
Feels like
47°F
Dew Point
49°F
1 PM
49°F
90%
4mph
ENE
Light Rain
Humidity
100%
Feels like
47°F
Dew Point
49°F
2 PM
49°F
70%
5mph
ESE
70% Chance of Light Rain
Humidity
97%
Feels like
47°F
Dew Point
48°F
3 PM
49°F
70%
6mph
ESE
70% Chance of Light Rain
Humidity
93%
Feels like
46°F
Dew Point
47°F
4 PM
49°F
50%
7mph
S
50% Chance of Light Rain
Humidity
88%
Feels like
47°F
Dew Point
46°F
4:27 PM
5 PM
49°F
30%
9mph
W
30% Chance of Light Rain
Humidity
86%
Feels like
45°F
Dew Point
45°F
6 PM
48°F
20%
12mph
W
Cloudy
Humidity
85%
Feels like
43°F
Dew Point
43°F
7 PM
45°F
10%
15mph
W
Cloudy
Humidity
83%
Feels like
38°F
Dew Point
40°F
8 PM
41°F
10%
17mph
W
Cloudy
Humidity
81%
Feels like
33°F
Dew Point
36°F
9 PM
38°F
10%
19mph
W
Cloudy
Humidity
78%
Feels like
28°F
Dew Point
32°F
10 PM
34°F
20%
21mph
W
Windy
Humidity
76%
Feels like
22°F
Dew Point
27°F
11 PM
30°F
30%
22mph
W
30% Chance of Snow
Humidity
73%
Feels like
16°F
Dew Point
22°F

Snow and Ice Forecast Through Monday

Heavy Snow and Icing from Midwest to New England

A winter storm will deliver snow and significant icing from the Midwest to New England.

Today's Weather Outlook

Today's Weather Outlook

Satellite image of Hurricane Melissa

2025 Year in Review: Powerful Hurricanes in the Atlantic

A frame from an automated video of a tornado and its mesocyclone that derailed multiple train cars near Enderlin, North Dakota and destroyed multiple homes on June 20, 2025. (ChrisWx via Wikimedia Commons)

2025 Year in Review: Extreme Weather - January through June

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Hurricane Erick at its peak intensity before making landfall on Guerrero, Mexico on June 19, 2025 (NOAA/Wikimedia Commons)

2025 Year in Review: Active Tropical Season for The Pacific

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide