Hourly Weather Forecast - Harrisburg, IL

12 AM
30°F
0%
4mph
NW
Mostly Cloudy
Humidity
81%
Feels like
25°F
Dew Point
24°F
1 AM
29°F
0%
4mph
NW
Mostly Cloudy
Humidity
80%
Feels like
24°F
Dew Point
24°F
2 AM
28°F
0%
4mph
NW
Mostly Cloudy
Humidity
79%
Feels like
23°F
Dew Point
22°F
3 AM
27°F
0%
4mph
NNW
Mostly Cloudy
Humidity
78%
Feels like
23°F
Dew Point
21°F
4 AM
26°F
0%
4mph
NNW
Mostly Cloudy
Humidity
77%
Feels like
22°F
Dew Point
20°F
5 AM
25°F
0%
3mph
NNW
Partly Cloudy
Humidity
77%
Feels like
25°F
Dew Point
19°F
6 AM
24°F
0%
3mph
NNW
Partly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
18°F
7 AM
24°F
0%
3mph
NNW
Partly Cloudy
Humidity
73%
Feels like
24°F
Dew Point
17°F
7:00 AM
8 AM
25°F
0%
2mph
NNW
Mostly Cloudy
Humidity
67%
Feels like
25°F
Dew Point
16°F
9 AM
27°F
0%
2mph
N
Cloudy
Humidity
60%
Feels like
27°F
Dew Point
15°F
10 AM
29°F
0%
2mph
N
Cloudy
Humidity
54%
Feels like
29°F
Dew Point
14°F
11 AM
30°F
0%
2mph
N
Cloudy
Humidity
49%
Feels like
30°F
Dew Point
13°F
12 PM
31°F
0%
2mph
N
Cloudy
Humidity
46%
Feels like
31°F
Dew Point
13°F
1 PM
31°F
0%
2mph
N
Cloudy
Humidity
45%
Feels like
31°F
Dew Point
13°F
2 PM
31°F
0%
2mph
N
Mostly Cloudy
Humidity
46%
Feels like
31°F
Dew Point
12°F
3 PM
29°F
10%
3mph
N
Mostly Cloudy
Humidity
49%
Feels like
29°F
Dew Point
13°F
4 PM
28°F
10%
3mph
N
Cloudy
Humidity
54%
Feels like
24°F
Dew Point
13°F
4:35 PM
5 PM
26°F
10%
3mph
N
Cloudy
Humidity
58%
Feels like
22°F
Dew Point
13°F
6 PM
24°F
10%
4mph
N
Cloudy
Humidity
62%
Feels like
20°F
Dew Point
13°F
7 PM
23°F
10%
4mph
N
Cloudy
Humidity
65%
Feels like
18°F
Dew Point
13°F
8 PM
22°F
10%
4mph
N
Cloudy
Humidity
67%
Feels like
16°F
Dew Point
13°F
9 PM
21°F
10%
5mph
N
Mostly Cloudy
Humidity
68%
Feels like
14°F
Dew Point
12°F
10 PM
20°F
10%
5mph
N
Mostly Cloudy
Humidity
69%
Feels like
13°F
Dew Point
11°F
11 PM
19°F
20%
5mph
N
Partly Cloudy
Humidity
68%
Feels like
11°F
Dew Point
10°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

Today's Weather Outlook

Today'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