Hourly Weather Forecast - Port Byron, IL

12 AM
49°F
20%
8mph
SSW
Clear
Humidity
82%
Feels like
45°F
Dew Point
43°F
1 AM
48°F
20%
9mph
SSW
Mostly Clear
Humidity
85%
Feels like
44°F
Dew Point
43°F
2 AM
47°F
20%
9mph
SSW
Mostly Clear
Humidity
87%
Feels like
43°F
Dew Point
43°F
3 AM
47°F
10%
9mph
SSW
Partly Cloudy
Humidity
88%
Feels like
43°F
Dew Point
44°F
4 AM
47°F
10%
9mph
SSW
Partly Cloudy
Humidity
89%
Feels like
42°F
Dew Point
44°F
5 AM
46°F
10%
8mph
SSW
Partly Cloudy
Humidity
90%
Feels like
42°F
Dew Point
44°F
6 AM
46°F
10%
8mph
SW
Partly Cloudy
Humidity
91%
Feels like
42°F
Dew Point
44°F
6:54 AM
7 AM
47°F
10%
6mph
SW
Mostly Cloudy
Humidity
87%
Feels like
44°F
Dew Point
44°F
8 AM
50°F
10%
4mph
W
Mostly Cloudy
Humidity
80%
Feels like
50°F
Dew Point
44°F
9 AM
54°F
10%
6mph
NW
Mostly Cloudy
Humidity
72%
Feels like
54°F
Dew Point
45°F
10 AM
57°F
10%
10mph
NNW
Cloudy
Humidity
65%
Feels like
57°F
Dew Point
45°F
11 AM
59°F
10%
11mph
NNW
Cloudy
Humidity
59%
Feels like
59°F
Dew Point
44°F
12 PM
60°F
20%
12mph
N
Cloudy
Humidity
52%
Feels like
60°F
Dew Point
43°F
1 PM
62°F
20%
13mph
N
Cloudy
Humidity
47%
Feels like
62°F
Dew Point
42°F
2 PM
64°F
30%
13mph
N
30% Chance Rain Showers
Humidity
43%
Feels like
64°F
Dew Point
41°F
3 PM
64°F
30%
13mph
NNW
30% Chance Rain Showers
Humidity
42%
Feels like
64°F
Dew Point
41°F
4 PM
64°F
30%
13mph
NNW
30% Chance Rain Showers
Humidity
42%
Feels like
64°F
Dew Point
40°F
5 PM
61°F
30%
13mph
NNW
30% Chance Rain Showers
Humidity
43%
Feels like
61°F
Dew Point
39°F
6 PM
59°F
30%
13mph
NNW
30% Chance Rain Showers
Humidity
44%
Feels like
59°F
Dew Point
37°F
7 PM
56°F
30%
13mph
N
30% Chance Rain Showers
Humidity
46%
Feels like
56°F
Dew Point
36°F
7:19 PM
8 PM
55°F
30%
13mph
N
30% Chance Rain Showers
Humidity
46%
Feels like
55°F
Dew Point
34°F
9 PM
52°F
20%
13mph
N
Mostly Clear
Humidity
47%
Feels like
52°F
Dew Point
33°F
10 PM
50°F
20%
13mph
N
Mostly Clear
Humidity
48%
Feels like
50°F
Dew Point
31°F
11 PM
48°F
20%
12mph
N
Mostly Clear
Humidity
49%
Feels like
43°F
Dew Point
30°F

Today's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

Much of the Southwest will observe record-breaking heat through the weekend, with high temperatures reminiscent of mid-summer!

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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