Hourly Weather Forecast - Summit, IL

12 AM
13°F
10%
4mph
ESE
Clear
Humidity
53%
Feels like
6°F
Dew Point
-1°F
1 AM
13°F
10%
4mph
ESE
Clear
Humidity
54%
Feels like
6°F
Dew Point
-1°F
2 AM
13°F
10%
4mph
ESE
Clear
Humidity
54%
Feels like
5°F
Dew Point
-1°F
3 AM
13°F
10%
4mph
SE
Clear
Humidity
55%
Feels like
5°F
Dew Point
0°F
4 AM
12°F
10%
5mph
SE
Clear
Humidity
56%
Feels like
4°F
Dew Point
0°F
5 AM
12°F
10%
5mph
SE
Clear
Humidity
59%
Feels like
4°F
Dew Point
1°F
6 AM
11°F
10%
5mph
SE
Clear
Humidity
63%
Feels like
3°F
Dew Point
1°F
7 AM
12°F
10%
6mph
SSE
Mostly Clear
Humidity
63%
Feels like
3°F
Dew Point
2°F
7:10 AM
8 AM
15°F
10%
6mph
SSE
Partly Cloudy
Humidity
61%
Feels like
5°F
Dew Point
3°F
9 AM
18°F
10%
7mph
SSE
Partly Cloudy
Humidity
55%
Feels like
8°F
Dew Point
5°F
10 AM
21°F
10%
7mph
SSE
Mostly Cloudy
Humidity
50%
Feels like
12°F
Dew Point
6°F
11 AM
25°F
10%
7mph
S
Cloudy
Humidity
45%
Feels like
17°F
Dew Point
7°F
12 PM
28°F
10%
7mph
S
Cloudy
Humidity
42%
Feels like
20°F
Dew Point
8°F
1 PM
30°F
10%
7mph
S
Cloudy
Humidity
40%
Feels like
23°F
Dew Point
9°F
2 PM
32°F
10%
7mph
S
Mostly Cloudy
Humidity
40%
Feels like
25°F
Dew Point
11°F
3 PM
32°F
10%
6mph
S
Partly Cloudy
Humidity
42%
Feels like
26°F
Dew Point
12°F
4 PM
32°F
10%
6mph
S
Partly Cloudy
Humidity
46%
Feels like
26°F
Dew Point
13°F

Snow and ice forecast through Thursday A.M.

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Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

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People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

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Today's National Outlook

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Snow & Ski Forecast

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