Hourly Weather Forecast - Arlington Heights, IL

12 AM
37°F
10%
3mph
SSW
Partly Cloudy
Humidity
88%
Feels like
35°F
Dew Point
34°F
1 AM
38°F
10%
3mph
SSW
Partly Cloudy
Humidity
89%
Feels like
36°F
Dew Point
35°F
2 AM
39°F
20%
3mph
SSW
Partly Cloudy
Humidity
88%
Feels like
39°F
Dew Point
36°F
3 AM
40°F
20%
3mph
SW
Mostly Cloudy
Humidity
86%
Feels like
38°F
Dew Point
36°F
4 AM
41°F
20%
3mph
SW
Cloudy
Humidity
84%
Feels like
41°F
Dew Point
37°F
5 AM
42°F
20%
3mph
SW
Cloudy
Humidity
82%
Feels like
42°F
Dew Point
37°F
6 AM
42°F
20%
2mph
WSW
Cloudy
Humidity
80%
Feels like
42°F
Dew Point
37°F
6:45 AM
7 AM
44°F
20%
2mph
W
Mostly Cloudy
Humidity
75%
Feels like
44°F
Dew Point
37°F
8 AM
47°F
20%
3mph
W
Cloudy
Humidity
71%
Feels like
47°F
Dew Point
38°F
9 AM
51°F
20%
4mph
WNW
Cloudy
Humidity
65%
Feels like
51°F
Dew Point
39°F
10 AM
54°F
30%
4mph
WNW
30% Chance of Light Rain
Humidity
60%
Feels like
54°F
Dew Point
41°F
11 AM
57°F
30%
5mph
NW
30% Chance of Light Rain
Humidity
54%
Feels like
57°F
Dew Point
41°F
12 PM
60°F
30%
5mph
NW
30% Chance of Light Rain
Humidity
52%
Feels like
60°F
Dew Point
42°F
1 PM
61°F
30%
6mph
NNW
30% Chance of Light Rain
Humidity
53%
Feels like
61°F
Dew Point
44°F
2 PM
60°F
30%
6mph
N
30% Chance of Light Rain
Humidity
56%
Feels like
60°F
Dew Point
45°F
3 PM
58°F
30%
6mph
N
30% Chance Rain Showers
Humidity
61%
Feels like
58°F
Dew Point
45°F
4 PM
56°F
30%
6mph
NNE
30% Chance Rain Showers
Humidity
64%
Feels like
56°F
Dew Point
44°F
5 PM
53°F
40%
6mph
NNE
40% Chance Rain Showers
Humidity
67%
Feels like
53°F
Dew Point
43°F
6 PM
51°F
40%
6mph
NNE
40% Chance Rain Showers
Humidity
68%
Feels like
51°F
Dew Point
41°F
7 PM
48°F
40%
6mph
NNE
40% Chance Rain Showers
Humidity
70%
Feels like
45°F
Dew Point
38°F
7:10 PM
8 PM
44°F
40%
7mph
NNE
40% Chance Rain Showers
Humidity
68%
Feels like
40°F
Dew Point
34°F
9 PM
41°F
40%
7mph
NNE
40% Chance Rain Showers
Humidity
70%
Feels like
36°F
Dew Point
31°F
10 PM
39°F
30%
8mph
NNE
30% Chance Rain Showers
Humidity
70%
Feels like
34°F
Dew Point
30°F
11 PM
38°F
20%
7mph
NNE
Partly Cloudy
Humidity
70%
Feels like
33°F
Dew Point
29°F

Today's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

Much of the Southwest will observe record-breaking heat through the weekend, with high temperatures reminiscent of mid-summer!

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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