Hourly Weather Forecast - Mount Prospect, IL

12 AM
41°F
10%
8mph
SSE
Mostly Clear
Humidity
64%
Feels like
36°F
Dew Point
30°F
1 AM
42°F
10%
9mph
SSE
Mostly Clear
Humidity
66%
Feels like
36°F
Dew Point
31°F
2 AM
42°F
10%
9mph
S
Clear
Humidity
67%
Feels like
37°F
Dew Point
32°F
3 AM
43°F
10%
9mph
S
Clear
Humidity
68%
Feels like
37°F
Dew Point
33°F
4 AM
43°F
10%
10mph
S
Clear
Humidity
68%
Feels like
38°F
Dew Point
34°F
5 AM
44°F
10%
10mph
SSW
Mostly Clear
Humidity
69%
Feels like
39°F
Dew Point
34°F
6 AM
46°F
10%
10mph
SSW
Partly Cloudy
Humidity
67%
Feels like
40°F
Dew Point
35°F
6:45 AM
7 AM
47°F
10%
11mph
SSW
Partly Cloudy
Humidity
64%
Feels like
43°F
Dew Point
36°F
8 AM
50°F
10%
12mph
SSW
Partly Cloudy
Humidity
62%
Feels like
50°F
Dew Point
38°F
9 AM
53°F
10%
13mph
SW
Mostly Cloudy
Humidity
59%
Feels like
53°F
Dew Point
39°F
10 AM
55°F
10%
14mph
SW
Mostly Cloudy
Humidity
57%
Feels like
55°F
Dew Point
40°F
11 AM
58°F
10%
15mph
WSW
Mostly Cloudy
Humidity
53%
Feels like
58°F
Dew Point
41°F
12 PM
61°F
10%
15mph
WSW
Cloudy
Humidity
50%
Feels like
61°F
Dew Point
42°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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