Hourly Weather Forecast - Sullivan, IL

12 AM
26°F
0%
6mph
SW
Hazy
Humidity
95%
Feels like
18°F
Dew Point
24°F
1 AM
25°F
0%
6mph
SW
Hazy
Humidity
95%
Feels like
18°F
Dew Point
24°F
2 AM
25°F
0%
6mph
WSW
Hazy
Humidity
98%
Feels like
17°F
Dew Point
24°F
3 AM
25°F
0%
7mph
WSW
Foggy
Humidity
99%
Feels like
17°F
Dew Point
25°F
4 AM
25°F
10%
8mph
W
Foggy
Humidity
100%
Feels like
17°F
Dew Point
25°F
5 AM
26°F
10%
8mph
WSW
Foggy
Humidity
99%
Feels like
18°F
Dew Point
26°F
6 AM
28°F
10%
9mph
W
Foggy
Humidity
99%
Feels like
19°F
Dew Point
28°F
6:57 AM
7 AM
30°F
0%
9mph
W
Partly Cloudy
Humidity
96%
Feels like
22°F
Dew Point
29°F
8 AM
33°F
0%
11mph
WNW
Partly Cloudy
Humidity
90%
Feels like
25°F
Dew Point
31°F
9 AM
36°F
0%
12mph
WNW
Partly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
32°F
10 AM
37°F
0%
13mph
NW
Partly Cloudy
Humidity
84%
Feels like
29°F
Dew Point
33°F
11 AM
38°F
0%
14mph
NW
Partly Cloudy
Humidity
82%
Feels like
30°F
Dew Point
33°F
12 PM
39°F
0%
15mph
NNW
Mostly Cloudy
Humidity
80%
Feels like
30°F
Dew Point
33°F
1 PM
39°F
0%
15mph
NNW
Mostly Cloudy
Humidity
78%
Feels like
30°F
Dew Point
33°F
2 PM
38°F
0%
15mph
NNW
Cloudy
Humidity
78%
Feels like
30°F
Dew Point
32°F
3 PM
38°F
0%
14mph
NNW
Cloudy
Humidity
79%
Feels like
29°F
Dew Point
32°F
4 PM
37°F
0%
13mph
NNW
Cloudy
Humidity
80%
Feels like
28°F
Dew Point
31°F
5 PM
36°F
0%
13mph
NNW
Cloudy
Humidity
80%
Feels like
28°F
Dew Point
31°F
5:20 PM
6 PM
35°F
0%
12mph
NNW
Cloudy
Humidity
81%
Feels like
27°F
Dew Point
30°F
7 PM
34°F
0%
13mph
NNW
Mostly Cloudy
Humidity
84%
Feels like
25°F
Dew Point
29°F
8 PM
33°F
0%
13mph
NNW
Partly Cloudy
Humidity
84%
Feels like
23°F
Dew Point
28°F
9 PM
31°F
0%
13mph
NNW
Partly Cloudy
Humidity
84%
Feels like
22°F
Dew Point
27°F
10 PM
30°F
0%
12mph
NNW
Partly Cloudy
Humidity
83%
Feels like
21°F
Dew Point
26°F
11 PM
29°F
0%
11mph
N
Mostly Clear
Humidity
81%
Feels like
20°F
Dew Point
24°F

Friday's Weather Outlook

Friday's Weather Outlook

A snow-filled clipper system is set to sweep through the Great Lakes, Ohio Valley, and Mid-Atlantic.

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for February 5, 2026

Scarce Precipitation Leads to Widespread Drought Degradation

Image courtesy of Pixabay.com

All About Snow Squalls

A person in a pink coat and red mittens holding a snowball. (Image by Dmitriy Gutarev from Pixabay)

Cold Weather and Worsening Health Conditions

Windchill chart

Dangers of Wind Chills

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