Hourly Weather Forecast - Arlington Heights, IL

12 AM
36°F
0%
6mph
WSW
Cloudy
Humidity
82%
Feels like
31°F
Dew Point
31°F
1 AM
36°F
0%
6mph
WSW
Cloudy
Humidity
81%
Feels like
31°F
Dew Point
31°F
2 AM
36°F
0%
6mph
W
Cloudy
Humidity
80%
Feels like
31°F
Dew Point
30°F
3 AM
35°F
0%
5mph
W
Cloudy
Humidity
79%
Feels like
31°F
Dew Point
30°F
4 AM
35°F
0%
4mph
W
Cloudy
Humidity
79%
Feels like
31°F
Dew Point
29°F
5 AM
34°F
0%
3mph
W
Cloudy
Humidity
78%
Feels like
31°F
Dew Point
28°F
6 AM
34°F
0%
3mph
WNW
Cloudy
Humidity
78%
Feels like
34°F
Dew Point
28°F
7 AM
34°F
0%
2mph
W
Mostly Cloudy
Humidity
76%
Feels like
34°F
Dew Point
27°F
7:14 AM
8 AM
34°F
0%
2mph
W
Partly Cloudy
Humidity
76%
Feels like
34°F
Dew Point
28°F
9 AM
35°F
0%
1mph
W
Partly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
28°F
10 AM
36°F
0%
1mph
W
Partly Cloudy
Humidity
72%
Feels like
36°F
Dew Point
28°F
11 AM
37°F
0%
1mph
W
Partly Cloudy
Humidity
67%
Feels like
37°F
Dew Point
27°F
12 PM
38°F
0%
1mph
W
Partly Cloudy
Humidity
65%
Feels like
38°F
Dew Point
27°F
1 PM
38°F
0%
1mph
WSW
Mostly Sunny
Humidity
65%
Feels like
38°F
Dew Point
28°F
2 PM
38°F
0%
1mph
SSW
Mostly Sunny
Humidity
67%
Feels like
38°F
Dew Point
28°F
3 PM
37°F
0%
2mph
S
Mostly Sunny
Humidity
69%
Feels like
37°F
Dew Point
28°F
4 PM
36°F
0%
2mph
S
Mostly Sunny
Humidity
72%
Feels like
36°F
Dew Point
28°F
4:21 PM
5 PM
35°F
0%
3mph
S
Mostly Clear
Humidity
75%
Feels like
35°F
Dew Point
28°F
6 PM
34°F
0%
4mph
S
Partly Cloudy
Humidity
78%
Feels like
31°F
Dew Point
28°F
7 PM
35°F
0%
5mph
S
Partly Cloudy
Humidity
81%
Feels like
30°F
Dew Point
29°F
8 PM
35°F
0%
5mph
S
Mostly Cloudy
Humidity
81%
Feels like
30°F
Dew Point
30°F
9 PM
36°F
0%
6mph
S
Mostly Cloudy
Humidity
82%
Feels like
30°F
Dew Point
31°F
10 PM
37°F
0%
7mph
S
Cloudy
Humidity
84%
Feels like
31°F
Dew Point
32°F
11 PM
38°F
0%
7mph
S
Mostly Cloudy
Humidity
86%
Feels like
32°F
Dew Point
34°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

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

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide