Hourly Weather Forecast - Port Byron, IL

12 AM
41°F
0%
6mph
SE
Mostly Cloudy
Humidity
60%
Feels like
36°F
Dew Point
28°F
1 AM
40°F
0%
7mph
SE
Mostly Cloudy
Humidity
61%
Feels like
36°F
Dew Point
28°F
2 AM
40°F
0%
7mph
SE
Mostly Cloudy
Humidity
61%
Feels like
35°F
Dew Point
27°F
3 AM
39°F
0%
7mph
SSE
Partly Cloudy
Humidity
60%
Feels like
34°F
Dew Point
27°F
4 AM
39°F
0%
7mph
SSE
Partly Cloudy
Humidity
60%
Feels like
34°F
Dew Point
26°F
5 AM
38°F
0%
7mph
SSE
Partly Cloudy
Humidity
62%
Feels like
33°F
Dew Point
26°F
6 AM
37°F
0%
7mph
SSE
Partly Cloudy
Humidity
64%
Feels like
32°F
Dew Point
26°F
6:58 AM
7 AM
38°F
0%
8mph
SSE
Partly Cloudy
Humidity
64%
Feels like
32°F
Dew Point
27°F
8 AM
40°F
0%
8mph
S
Partly Cloudy
Humidity
61%
Feels like
34°F
Dew Point
28°F
9 AM
44°F
0%
9mph
S
Mostly Cloudy
Humidity
56%
Feels like
38°F
Dew Point
29°F
10 AM
47°F
0%
10mph
S
Cloudy
Humidity
50%
Feels like
43°F
Dew Point
30°F
11 AM
50°F
0%
10mph
S
Cloudy
Humidity
47%
Feels like
50°F
Dew Point
31°F
12 PM
53°F
0%
10mph
SSW
Cloudy
Humidity
44%
Feels like
53°F
Dew Point
31°F
1 PM
55°F
0%
10mph
SSW
Cloudy
Humidity
42%
Feels like
55°F
Dew Point
32°F
2 PM
57°F
0%
10mph
SSW
Cloudy
Humidity
40%
Feels like
57°F
Dew Point
33°F
3 PM
58°F
0%
10mph
SSW
Mostly Cloudy
Humidity
39%
Feels like
58°F
Dew Point
33°F
4 PM
59°F
10%
9mph
SSW
Partly Cloudy
Humidity
40%
Feels like
59°F
Dew Point
34°F
5 PM
58°F
10%
7mph
SSW
Partly Cloudy
Humidity
42%
Feels like
58°F
Dew Point
35°F
6 PM
56°F
10%
5mph
S
Mostly Sunny
Humidity
46%
Feels like
56°F
Dew Point
36°F
7 PM
54°F
10%
5mph
SSE
Sunny
Humidity
51%
Feels like
54°F
Dew Point
36°F
7:17 PM
8 PM
51°F
10%
5mph
SE
Clear
Humidity
56%
Feels like
51°F
Dew Point
36°F
9 PM
49°F
10%
5mph
SSE
Clear
Humidity
60%
Feels like
47°F
Dew Point
36°F
10 PM
48°F
10%
5mph
SSE
Clear
Humidity
62%
Feels like
46°F
Dew Point
36°F
11 PM
47°F
10%
5mph
SSE
Mostly Clear
Humidity
65%
Feels like
44°F
Dew Point
36°F

Saturday's High Temperature Outlook

Scorching Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

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?

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide