Hourly Weather Forecast - Harrisburg, IL

12 AM
25°F
10%
4mph
SSW
Cloudy
Humidity
53%
Feels like
20°F
Dew Point
11°F
1 AM
25°F
10%
4mph
SSW
Cloudy
Humidity
54%
Feels like
21°F
Dew Point
11°F
2 AM
26°F
10%
4mph
SSW
Cloudy
Humidity
54%
Feels like
21°F
Dew Point
11°F
3 AM
26°F
10%
4mph
SSW
Cloudy
Humidity
54%
Feels like
22°F
Dew Point
12°F
4 AM
26°F
10%
3mph
SSW
Cloudy
Humidity
55%
Feels like
22°F
Dew Point
13°F
5 AM
26°F
10%
3mph
SSW
Cloudy
Humidity
58%
Feels like
22°F
Dew Point
14°F
6 AM
26°F
10%
3mph
S
Cloudy
Humidity
60%
Feels like
22°F
Dew Point
15°F
7 AM
27°F
10%
3mph
S
Cloudy
Humidity
62%
Feels like
23°F
Dew Point
16°F
7:02 AM
8 AM
28°F
10%
3mph
S
Cloudy
Humidity
61%
Feels like
25°F
Dew Point
17°F
9 AM
30°F
10%
4mph
S
Cloudy
Humidity
59%
Feels like
26°F
Dew Point
18°F
10 AM
32°F
10%
4mph
SSW
Cloudy
Humidity
57%
Feels like
28°F
Dew Point
19°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Thursday's Weather Outlook

Thursday'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

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide