Hourly Weather Forecast - Harrisburg, IL

12 AM
30°F
10%
9mph
WNW
Clear
Humidity
68%
Feels like
22°F
Dew Point
21°F
1 AM
28°F
10%
9mph
WNW
Clear
Humidity
66%
Feels like
20°F
Dew Point
18°F
2 AM
27°F
10%
8mph
WNW
Clear
Humidity
64%
Feels like
18°F
Dew Point
16°F
3 AM
25°F
10%
8mph
WNW
Clear
Humidity
65%
Feels like
17°F
Dew Point
15°F
4 AM
24°F
10%
7mph
WNW
Clear
Humidity
66%
Feels like
16°F
Dew Point
15°F
5 AM
24°F
0%
6mph
WNW
Clear
Humidity
67%
Feels like
16°F
Dew Point
14°F
6 AM
24°F
0%
6mph
W
Clear
Humidity
67%
Feels like
17°F
Dew Point
14°F
7 AM
25°F
0%
5mph
W
Clear
Humidity
65%
Feels like
18°F
Dew Point
15°F
7:04 AM
8 AM
26°F
0%
6mph
W
Sunny
Humidity
62%
Feels like
20°F
Dew Point
15°F
9 AM
28°F
0%
6mph
W
Sunny
Humidity
57%
Feels like
22°F
Dew Point
15°F
10 AM
30°F
0%
6mph
W
Sunny
Humidity
54%
Feels like
25°F
Dew Point
16°F
11 AM
32°F
0%
5mph
W
Sunny
Humidity
51%
Feels like
27°F
Dew Point
16°F
12 PM
33°F
0%
4mph
W
Mostly Sunny
Humidity
49%
Feels like
29°F
Dew Point
16°F
1 PM
34°F
0%
4mph
W
Sunny
Humidity
47%
Feels like
31°F
Dew Point
17°F
2 PM
35°F
0%
3mph
W
Mostly Sunny
Humidity
48%
Feels like
32°F
Dew Point
17°F
3 PM
35°F
0%
3mph
WSW
Partly Cloudy
Humidity
49%
Feels like
35°F
Dew Point
18°F
4 PM
33°F
0%
2mph
SW
Partly Cloudy
Humidity
53%
Feels like
33°F
Dew Point
18°F
4:37 PM
5 PM
32°F
0%
2mph
SSW
Partly Cloudy
Humidity
60%
Feels like
32°F
Dew Point
19°F
6 PM
30°F
0%
2mph
S
Partly Cloudy
Humidity
66%
Feels like
30°F
Dew Point
20°F
7 PM
29°F
0%
2mph
SSE
Mostly Clear
Humidity
70%
Feels like
29°F
Dew Point
20°F
8 PM
29°F
0%
3mph
S
Clear
Humidity
72%
Feels like
26°F
Dew Point
21°F
9 PM
29°F
0%
4mph
S
Clear
Humidity
72%
Feels like
25°F
Dew Point
22°F
10 PM
30°F
0%
4mph
S
Clear
Humidity
72%
Feels like
26°F
Dew Point
22°F
11 PM
31°F
0%
4mph
S
Clear
Humidity
72%
Feels like
26°F
Dew Point
23°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide