Hourly Weather Forecast - Harrisburg, IL

12 AM
18°F
10%
6mph
N
Partly Cloudy
Humidity
67%
Feels like
9°F
Dew Point
9°F
1 AM
17°F
10%
6mph
N
Mostly Clear
Humidity
66%
Feels like
8°F
Dew Point
7°F
2 AM
15°F
10%
6mph
N
Mostly Clear
Humidity
65%
Feels like
6°F
Dew Point
6°F
3 AM
14°F
10%
6mph
N
Mostly Clear
Humidity
65%
Feels like
4°F
Dew Point
4°F
4 AM
13°F
10%
6mph
N
Mostly Clear
Humidity
65%
Feels like
3°F
Dew Point
3°F
5 AM
11°F
10%
6mph
N
Clear
Humidity
65%
Feels like
1°F
Dew Point
2°F
6 AM
10°F
10%
6mph
N
Clear
Humidity
64%
Feels like
0°F
Dew Point
1°F
7 AM
10°F
0%
6mph
N
Clear
Humidity
61%
Feels like
0°F
Dew Point
-1°F
7:01 AM
8 AM
10°F
0%
6mph
N
Sunny
Humidity
56%
Feels like
0°F
Dew Point
-2°F
9 AM
12°F
0%
6mph
N
Sunny
Humidity
50%
Feels like
2°F
Dew Point
-3°F
10 AM
13°F
0%
6mph
N
Sunny
Humidity
43%
Feels like
4°F
Dew Point
-5°F
11 AM
15°F
0%
6mph
N
Sunny
Humidity
38%
Feels like
7°F
Dew Point
-5°F
12 PM
17°F
0%
5mph
N
Sunny
Humidity
35%
Feels like
9°F
Dew Point
-6°F
1 PM
18°F
0%
5mph
N
Sunny
Humidity
33%
Feels like
10°F
Dew Point
-7°F
2 PM
18°F
0%
5mph
N
Sunny
Humidity
32%
Feels like
11°F
Dew Point
-7°F
3 PM
18°F
0%
4mph
N
Sunny
Humidity
34%
Feels like
11°F
Dew Point
-6°F
4 PM
17°F
0%
4mph
N
Sunny
Humidity
36%
Feels like
10°F
Dew Point
-5°F
4:36 PM
5 PM
15°F
0%
4mph
NNE
Clear
Humidity
40%
Feels like
10°F
Dew Point
-4°F
6 PM
14°F
0%
3mph
NNE
Clear
Humidity
45%
Feels like
9°F
Dew Point
-3°F
7 PM
13°F
0%
3mph
NNE
Clear
Humidity
49%
Feels like
8°F
Dew Point
-3°F
8 PM
12°F
0%
3mph
NE
Clear
Humidity
52%
Feels like
7°F
Dew Point
-2°F
9 PM
12°F
0%
3mph
ENE
Clear
Humidity
54%
Feels like
12°F
Dew Point
-1°F
10 PM
11°F
0%
3mph
ENE
Clear
Humidity
56%
Feels like
11°F
Dew Point
-1°F
11 PM
11°F
0%
2mph
ENE
Clear
Humidity
58%
Feels like
11°F
Dew Point
-1°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

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Outdoor Sports Guide