Hourly Weather Forecast - Port Byron, IL

11 AM
26°F
0%
4mph
WNW
Mostly Cloudy
Humidity
85%
Feels like
21°F
Dew Point
23°F
12 PM
27°F
0%
4mph
WNW
Mostly Cloudy
Humidity
84%
Feels like
23°F
Dew Point
23°F
1 PM
27°F
0%
2mph
WNW
Mostly Cloudy
Humidity
84%
Feels like
27°F
Dew Point
23°F
2 PM
27°F
0%
1mph
SE
Mostly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
24°F
3 PM
27°F
0%
3mph
ESE
Mostly Cloudy
Humidity
89%
Feels like
27°F
Dew Point
24°F
4 PM
26°F
0%
4mph
ESE
Cloudy
Humidity
92%
Feels like
21°F
Dew Point
24°F
4:31 PM
5 PM
25°F
0%
4mph
E
Cloudy
Humidity
93%
Feels like
21°F
Dew Point
24°F
6 PM
25°F
10%
4mph
E
Cloudy
Humidity
94%
Feels like
20°F
Dew Point
24°F
7 PM
25°F
30%
4mph
E
30% Chance of Snow
Humidity
96%
Feels like
19°F
Dew Point
24°F
8 PM
26°F
50%
5mph
E
50% Chance of Heavy Snow
Humidity
96%
Feels like
19°F
Dew Point
25°F
9 PM
26°F
70%
6mph
E
70% Chance of Heavy Snow
Humidity
96%
Feels like
19°F
Dew Point
25°F
10 PM
27°F
80%
6mph
E
80% Chance of Heavy Snow
Humidity
95%
Feels like
20°F
Dew Point
26°F
11 PM
28°F
80%
7mph
E
80% Chance of Heavy Snow
Humidity
94%
Feels like
21°F
Dew Point
26°F

Snowfall Forecast Through Tonight

Two Winter Storms Deliver Accumulating Northern U.S. Snow

A plowable snow will occur from parts of the Pacific Northwest to the Upper Midwest for the start of the weekend.

Weekend Weather Outlook

Weekend 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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Image courtesy of PeakPX.

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