Hourly Weather Forecast - Winnebago, IL

12 AM
-4°F
0%
6mph
SSW
Very Cold
Humidity
77%
Feels like
-16°F
Dew Point
-9°F
1 AM
-3°F
0%
6mph
SSW
Very Cold
Humidity
77%
Feels like
-16°F
Dew Point
-9°F
2 AM
-2°F
10%
7mph
S
Very Cold
Humidity
77%
Feels like
-15°F
Dew Point
-8°F
3 AM
-1°F
10%
7mph
S
Very Cold
Humidity
77%
Feels like
-15°F
Dew Point
-7°F
4 AM
0°F
10%
8mph
S
Cloudy
Humidity
76%
Feels like
-14°F
Dew Point
-5°F
5 AM
2°F
10%
9mph
S
Cloudy
Humidity
76%
Feels like
-13°F
Dew Point
-4°F
6 AM
3°F
10%
9mph
S
Cloudy
Humidity
76%
Feels like
-11°F
Dew Point
-3°F
7 AM
5°F
10%
10mph
S
Mostly Cloudy
Humidity
77%
Feels like
-10°F
Dew Point
-1°F
7:18 AM
8 AM
7°F
10%
10mph
S
Partly Cloudy
Humidity
79%
Feels like
-8°F
Dew Point
1°F
9 AM
8°F
10%
10mph
S
Sunny
Humidity
80%
Feels like
-5°F
Dew Point
3°F
10 AM
11°F
10%
10mph
S
Sunny
Humidity
78%
Feels like
-3°F
Dew Point
5°F
11 AM
13°F
10%
9mph
S
Sunny
Humidity
76%
Feels like
0°F
Dew Point
6°F
12 PM
15°F
20%
9mph
SSW
Mostly Sunny
Humidity
74%
Feels like
3°F
Dew Point
8°F
1 PM
16°F
20%
8mph
SSW
Partly Cloudy
Humidity
73%
Feels like
5°F
Dew Point
9°F
2 PM
17°F
20%
8mph
SSW
Partly Cloudy
Humidity
73%
Feels like
7°F
Dew Point
10°F
3 PM
17°F
20%
7mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
7°F
Dew Point
10°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

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.

Cold Air Damming - Cause And Effects

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

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Outdoor Sports Guide