Hourly Weather Forecast - Arlington Heights, IL

12 AM
26°F
0%
6mph
S
Partly Cloudy
Humidity
54%
Feels like
19°F
Dew Point
11°F
1 AM
26°F
0%
6mph
S
Partly Cloudy
Humidity
56%
Feels like
19°F
Dew Point
13°F
2 AM
27°F
0%
7mph
S
Partly Cloudy
Humidity
57%
Feels like
20°F
Dew Point
14°F
3 AM
28°F
0%
8mph
S
Partly Cloudy
Humidity
58%
Feels like
21°F
Dew Point
15°F
4 AM
29°F
0%
8mph
S
Partly Cloudy
Humidity
58%
Feels like
22°F
Dew Point
17°F
5 AM
30°F
0%
8mph
S
Mostly Cloudy
Humidity
60%
Feels like
22°F
Dew Point
18°F
6 AM
31°F
0%
8mph
S
Cloudy
Humidity
61%
Feels like
23°F
Dew Point
19°F
7 AM
32°F
0%
8mph
SSW
Cloudy
Humidity
61%
Feels like
25°F
Dew Point
20°F
7:16 AM
8 AM
34°F
0%
8mph
SSW
Cloudy
Humidity
60%
Feels like
27°F
Dew Point
21°F
9 AM
36°F
0%
7mph
SSW
Cloudy
Humidity
57%
Feels like
30°F
Dew Point
22°F
10 AM
38°F
0%
7mph
SSW
Cloudy
Humidity
56%
Feels like
33°F
Dew Point
24°F
11 AM
39°F
0%
6mph
SW
Cloudy
Humidity
56%
Feels like
34°F
Dew Point
25°F
12 PM
39°F
10%
6mph
SW
Cloudy
Humidity
58%
Feels like
35°F
Dew Point
26°F
1 PM
39°F
10%
5mph
WSW
Cloudy
Humidity
59%
Feels like
35°F
Dew Point
26°F
2 PM
39°F
10%
5mph
W
Mostly Cloudy
Humidity
61%
Feels like
35°F
Dew Point
27°F
3 PM
38°F
10%
4mph
W
Mostly Cloudy
Humidity
64%
Feels like
34°F
Dew Point
26°F
4 PM
36°F
10%
5mph
W
Partly Cloudy
Humidity
65%
Feels like
32°F
Dew Point
26°F
4:22 PM
5 PM
35°F
10%
5mph
WNW
Mostly Clear
Humidity
65%
Feels like
30°F
Dew Point
24°F
6 PM
34°F
10%
6mph
WNW
Clear
Humidity
63%
Feels like
29°F
Dew Point
23°F
7 PM
32°F
10%
6mph
WNW
Clear
Humidity
61%
Feels like
26°F
Dew Point
20°F
8 PM
30°F
0%
7mph
WNW
Clear
Humidity
60%
Feels like
24°F
Dew Point
18°F
9 PM
29°F
0%
8mph
WNW
Clear
Humidity
58%
Feels like
21°F
Dew Point
16°F
10 PM
28°F
0%
8mph
WNW
Clear
Humidity
56%
Feels like
19°F
Dew Point
14°F
11 PM
27°F
0%
9mph
WNW
Clear
Humidity
54%
Feels like
18°F
Dew Point
12°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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