Hourly Weather Forecast - Sullivan, IL

12 AM
26°F
0%
15mph
S
Cloudy
Humidity
54%
Feels like
13°F
Dew Point
11°F
1 AM
26°F
0%
15mph
SSW
Cloudy
Humidity
55%
Feels like
14°F
Dew Point
12°F
2 AM
27°F
0%
15mph
SSW
Cloudy
Humidity
56%
Feels like
15°F
Dew Point
13°F
3 AM
27°F
0%
15mph
SSW
Cloudy
Humidity
57%
Feels like
15°F
Dew Point
14°F
4 AM
27°F
0%
15mph
SSW
Mostly Cloudy
Humidity
62%
Feels like
15°F
Dew Point
15°F
5 AM
27°F
0%
14mph
SSW
Partly Cloudy
Humidity
65%
Feels like
16°F
Dew Point
17°F
6 AM
28°F
0%
14mph
SSW
Partly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
19°F
7 AM
29°F
0%
14mph
SW
Partly Cloudy
Humidity
71%
Feels like
19°F
Dew Point
21°F
7:10 AM
8 AM
31°F
0%
14mph
SW
Partly Cloudy
Humidity
73%
Feels like
21°F
Dew Point
23°F
9 AM
33°F
0%
14mph
SW
Partly Cloudy
Humidity
72%
Feels like
23°F
Dew Point
25°F
10 AM
34°F
0%
14mph
WSW
Partly Cloudy
Humidity
70%
Feels like
25°F
Dew Point
25°F
11 AM
35°F
0%
15mph
WSW
Partly Cloudy
Humidity
66%
Feels like
26°F
Dew Point
25°F
12 PM
37°F
0%
15mph
W
Partly Cloudy
Humidity
60%
Feels like
28°F
Dew Point
24°F
1 PM
37°F
0%
15mph
W
Partly Cloudy
Humidity
56%
Feels like
29°F
Dew Point
23°F
2 PM
37°F
10%
14mph
W
Partly Cloudy
Humidity
54%
Feels like
28°F
Dew Point
22°F
3 PM
35°F
10%
13mph
W
Mostly Sunny
Humidity
54%
Feels like
26°F
Dew Point
20°F
4 PM
33°F
10%
11mph
W
Partly Cloudy
Humidity
56%
Feels like
24°F
Dew Point
19°F
5 PM
30°F
10%
9mph
W
Mostly Cloudy
Humidity
60%
Feels like
22°F
Dew Point
18°F
5:01 PM
6 PM
28°F
10%
8mph
WNW
Cloudy
Humidity
62%
Feels like
20°F
Dew Point
17°F
7 PM
26°F
10%
7mph
WNW
Cloudy
Humidity
64%
Feels like
19°F
Dew Point
16°F
8 PM
26°F
10%
7mph
WNW
Cloudy
Humidity
66%
Feels like
18°F
Dew Point
16°F
9 PM
26°F
10%
7mph
WNW
Cloudy
Humidity
66%
Feels like
18°F
Dew Point
16°F
10 PM
25°F
10%
6mph
WNW
Partly Cloudy
Humidity
67%
Feels like
17°F
Dew Point
16°F
11 PM
24°F
10%
6mph
WNW
Mostly Clear
Humidity
70%
Feels like
17°F
Dew Point
16°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Northeast

A couple low pressure systems will produce additional snowfall across the Great Lakes, Upper Midwest, and Northeast this weekend into the upcoming week.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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