Hourly Weather Forecast - Summit Argo, IL

12 AM
20°F
30%
19mph
WNW
30% Chance Snow Showers
Humidity
62%
Feels like
5°F
Dew Point
10°F
1 AM
19°F
30%
18mph
WNW
30% Chance Snow Showers
Humidity
61%
Feels like
4°F
Dew Point
8°F
2 AM
18°F
10%
17mph
WNW
Partly Cloudy
Humidity
60%
Feels like
3°F
Dew Point
7°F
3 AM
18°F
10%
16mph
WNW
Clear
Humidity
60%
Feels like
3°F
Dew Point
6°F
4 AM
17°F
10%
15mph
WNW
Clear
Humidity
60%
Feels like
3°F
Dew Point
6°F
5 AM
17°F
0%
13mph
WNW
Clear
Humidity
61%
Feels like
3°F
Dew Point
6°F
6 AM
17°F
0%
12mph
WNW
Clear
Humidity
61%
Feels like
3°F
Dew Point
6°F
7 AM
17°F
0%
11mph
WNW
Clear
Humidity
63%
Feels like
4°F
Dew Point
6°F
7:14 AM
8 AM
18°F
0%
11mph
WNW
Sunny
Humidity
62%
Feels like
5°F
Dew Point
7°F
9 AM
19°F
0%
11mph
WNW
Sunny
Humidity
61%
Feels like
7°F
Dew Point
8°F
10 AM
20°F
0%
11mph
W
Sunny
Humidity
60%
Feels like
9°F
Dew Point
9°F
11 AM
22°F
0%
11mph
W
Sunny
Humidity
58%
Feels like
10°F
Dew Point
9°F
12 PM
23°F
0%
11mph
WSW
Sunny
Humidity
57%
Feels like
12°F
Dew Point
10°F
1 PM
24°F
10%
10mph
SW
Sunny
Humidity
56%
Feels like
13°F
Dew Point
10°F
2 PM
24°F
10%
10mph
SW
Sunny
Humidity
54%
Feels like
14°F
Dew Point
10°F
3 PM
25°F
10%
10mph
SSW
Sunny
Humidity
53%
Feels like
15°F
Dew Point
11°F
4 PM
26°F
10%
10mph
S
Mostly Sunny
Humidity
53%
Feels like
16°F
Dew Point
11°F
4:22 PM
5 PM
26°F
10%
10mph
S
Partly Cloudy
Humidity
55%
Feels like
16°F
Dew Point
12°F
6 PM
25°F
10%
11mph
S
Partly Cloudy
Humidity
59%
Feels like
14°F
Dew Point
12°F
7 PM
24°F
10%
11mph
S
Partly Cloudy
Humidity
63%
Feels like
13°F
Dew Point
13°F
8 PM
23°F
10%
12mph
S
Partly Cloudy
Humidity
66%
Feels like
12°F
Dew Point
14°F
9 PM
24°F
10%
13mph
S
Partly Cloudy
Humidity
67%
Feels like
12°F
Dew Point
14°F
10 PM
24°F
10%
14mph
S
Partly Cloudy
Humidity
68%
Feels like
11°F
Dew Point
15°F
11 PM
24°F
10%
14mph
S
Mostly Cloudy
Humidity
69%
Feels like
12°F
Dew Point
15°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend 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