Hourly Weather Forecast - Sullivan, IL

12 AM
21°F
10%
8mph
S
Partly Cloudy
Humidity
60%
Feels like
12°F
Dew Point
10°F
1 AM
21°F
10%
8mph
S
Partly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
10°F
2 AM
21°F
10%
9mph
S
Partly Cloudy
Humidity
63%
Feels like
11°F
Dew Point
11°F
3 AM
20°F
10%
9mph
S
Mostly Clear
Humidity
65%
Feels like
10°F
Dew Point
11°F
4 AM
20°F
20%
10mph
S
Mostly Clear
Humidity
68%
Feels like
9°F
Dew Point
11°F
5 AM
19°F
20%
10mph
S
Clear
Humidity
73%
Feels like
7°F
Dew Point
11°F
6 AM
18°F
20%
11mph
S
Clear
Humidity
76%
Feels like
6°F
Dew Point
12°F
7 AM
19°F
20%
11mph
S
Clear
Humidity
77%
Feels like
7°F
Dew Point
13°F
7:09 AM
8 AM
22°F
10%
11mph
SSW
Sunny
Humidity
71%
Feels like
11°F
Dew Point
14°F
9 AM
26°F
10%
10mph
SSW
Sunny
Humidity
65%
Feels like
16°F
Dew Point
15°F
10 AM
29°F
10%
10mph
SSW
Sunny
Humidity
60%
Feels like
20°F
Dew Point
17°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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