Hourly Weather Forecast - Arlington Heights, IL

12 AM
19°F
30%
11mph
W
30% Chance of Snow
Humidity
58%
Feels like
7°F
Dew Point
7°F
1 AM
17°F
30%
11mph
W
30% Chance Snow Showers
Humidity
59%
Feels like
5°F
Dew Point
5°F
2 AM
16°F
10%
11mph
W
Partly Cloudy
Humidity
59%
Feels like
3°F
Dew Point
4°F
3 AM
15°F
0%
11mph
W
Mostly Clear
Humidity
58%
Feels like
2°F
Dew Point
3°F
4 AM
15°F
10%
11mph
WNW
Mostly Clear
Humidity
58%
Feels like
2°F
Dew Point
3°F
5 AM
15°F
0%
11mph
WNW
Partly Cloudy
Humidity
57%
Feels like
2°F
Dew Point
2°F
6 AM
16°F
0%
10mph
WNW
Partly Cloudy
Humidity
58%
Feels like
3°F
Dew Point
4°F
7 AM
16°F
0%
10mph
WNW
Partly Cloudy
Humidity
53%
Feels like
4°F
Dew Point
2°F
7:15 AM
8 AM
16°F
0%
9mph
WNW
Mostly Sunny
Humidity
49%
Feels like
5°F
Dew Point
1°F
9 AM
17°F
0%
8mph
WNW
Sunny
Humidity
50%
Feels like
6°F
Dew Point
2°F
10 AM
18°F
0%
8mph
WNW
Sunny
Humidity
51%
Feels like
9°F
Dew Point
3°F
11 AM
20°F
0%
7mph
WNW
Sunny
Humidity
48%
Feels like
11°F
Dew Point
3°F
12 PM
21°F
0%
6mph
WNW
Sunny
Humidity
47%
Feels like
13°F
Dew Point
4°F
1 PM
22°F
0%
5mph
W
Mostly Sunny
Humidity
47%
Feels like
15°F
Dew Point
5°F
2 PM
22°F
0%
4mph
W
Partly Cloudy
Humidity
49%
Feels like
17°F
Dew Point
6°F
3 PM
22°F
0%
3mph
WSW
Partly Cloudy
Humidity
49%
Feels like
22°F
Dew Point
6°F
4 PM
22°F
0%
2mph
WSW
Mostly Cloudy
Humidity
50%
Feels like
22°F
Dew Point
6°F
4:22 PM
5 PM
22°F
0%
2mph
SW
Mostly Cloudy
Humidity
52%
Feels like
22°F
Dew Point
7°F
6 PM
22°F
0%
2mph
SSW
Mostly Cloudy
Humidity
52%
Feels like
22°F
Dew Point
8°F
7 PM
23°F
0%
2mph
SSW
Mostly Cloudy
Humidity
54%
Feels like
23°F
Dew Point
9°F
8 PM
23°F
0%
3mph
S
Mostly Cloudy
Humidity
53%
Feels like
23°F
Dew Point
8°F
9 PM
23°F
0%
3mph
S
Mostly Cloudy
Humidity
53%
Feels like
19°F
Dew Point
8°F
10 PM
23°F
0%
4mph
S
Partly Cloudy
Humidity
54%
Feels like
18°F
Dew Point
9°F
11 PM
24°F
0%
5mph
S
Partly Cloudy
Humidity
55%
Feels like
18°F
Dew Point
10°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide