Hourly Weather Forecast - Sullivan, IL

7 AM
35°F
0%
16mph
S
Mostly Clear
Humidity
71%
Feels like
25°F
Dew Point
26°F
7:10 AM
8 AM
37°F
0%
16mph
S
Partly Cloudy
Humidity
68%
Feels like
27°F
Dew Point
27°F
9 AM
39°F
0%
15mph
SSW
Partly Cloudy
Humidity
67%
Feels like
30°F
Dew Point
29°F
10 AM
41°F
0%
15mph
SSW
Partly Cloudy
Humidity
64%
Feels like
34°F
Dew Point
30°F
11 AM
44°F
0%
15mph
SSW
Partly Cloudy
Humidity
62%
Feels like
37°F
Dew Point
32°F
12 PM
46°F
0%
14mph
SW
Partly Cloudy
Humidity
61%
Feels like
40°F
Dew Point
33°F
1 PM
47°F
0%
12mph
SW
Partly Cloudy
Humidity
62%
Feels like
41°F
Dew Point
34°F
2 PM
47°F
0%
10mph
WSW
Partly Cloudy
Humidity
64%
Feels like
42°F
Dew Point
35°F
3 PM
46°F
0%
9mph
W
Partly Cloudy
Humidity
67%
Feels like
41°F
Dew Point
35°F
4 PM
43°F
0%
7mph
WNW
Partly Cloudy
Humidity
72%
Feels like
39°F
Dew Point
35°F
4:33 PM
5 PM
40°F
0%
7mph
NW
Mostly Clear
Humidity
77%
Feels like
36°F
Dew Point
34°F
6 PM
38°F
0%
7mph
NW
Partly Cloudy
Humidity
79%
Feels like
32°F
Dew Point
32°F
7 PM
35°F
0%
7mph
NW
Partly Cloudy
Humidity
80%
Feels like
30°F
Dew Point
30°F
8 PM
34°F
0%
7mph
NW
Partly Cloudy
Humidity
80%
Feels like
27°F
Dew Point
28°F
9 PM
32°F
0%
8mph
NW
Mostly Clear
Humidity
78%
Feels like
25°F
Dew Point
26°F
10 PM
31°F
0%
8mph
NW
Mostly Clear
Humidity
77%
Feels like
23°F
Dew Point
25°F
11 PM
30°F
0%
8mph
NW
Mostly Clear
Humidity
77%
Feels like
22°F
Dew Point
23°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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