Hourly Weather Forecast - Sullivan, IL

12 AM
42°F
20%
16mph
N
Partly Cloudy
Humidity
75%
Feels like
34°F
Dew Point
35°F
1 AM
41°F
20%
15mph
N
Partly Cloudy
Humidity
75%
Feels like
33°F
Dew Point
34°F
2 AM
40°F
10%
15mph
N
Partly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
33°F
3 AM
39°F
0%
15mph
N
Mostly Cloudy
Humidity
75%
Feels like
31°F
Dew Point
32°F
4 AM
38°F
0%
14mph
N
Mostly Cloudy
Humidity
76%
Feels like
30°F
Dew Point
31°F
5 AM
37°F
0%
13mph
N
Mostly Cloudy
Humidity
76%
Feels like
29°F
Dew Point
30°F
6 AM
37°F
0%
12mph
N
Mostly Cloudy
Humidity
76%
Feels like
28°F
Dew Point
29°F
6:53 AM
7 AM
37°F
0%
11mph
N
Mostly Cloudy
Humidity
74%
Feels like
29°F
Dew Point
29°F
8 AM
38°F
0%
12mph
N
Mostly Cloudy
Humidity
70%
Feels like
30°F
Dew Point
29°F
9 AM
40°F
0%
12mph
NNE
Mostly Cloudy
Humidity
64%
Feels like
33°F
Dew Point
29°F
10 AM
43°F
0%
12mph
NNE
Mostly Cloudy
Humidity
57%
Feels like
37°F
Dew Point
29°F
11 AM
46°F
0%
12mph
NNE
Partly Cloudy
Humidity
52%
Feels like
40°F
Dew Point
29°F
12 PM
48°F
0%
11mph
N
Partly Cloudy
Humidity
49%
Feels like
43°F
Dew Point
29°F
1 PM
50°F
0%
11mph
N
Mostly Sunny
Humidity
46%
Feels like
45°F
Dew Point
30°F
2 PM
51°F
0%
11mph
N
Mostly Sunny
Humidity
43%
Feels like
51°F
Dew Point
29°F
3 PM
51°F
0%
10mph
N
Sunny
Humidity
42%
Feels like
51°F
Dew Point
29°F
4 PM
51°F
0%
10mph
N
Sunny
Humidity
41%
Feels like
51°F
Dew Point
29°F
5 PM
51°F
0%
8mph
N
Sunny
Humidity
42%
Feels like
51°F
Dew Point
28°F
6 PM
49°F
0%
6mph
NNE
Sunny
Humidity
45%
Feels like
46°F
Dew Point
28°F
7 PM
46°F
0%
6mph
NE
Sunny
Humidity
51%
Feels like
43°F
Dew Point
28°F
7:09 PM
8 PM
42°F
0%
5mph
NE
Mostly Clear
Humidity
58%
Feels like
39°F
Dew Point
29°F
9 PM
40°F
0%
6mph
ENE
Mostly Clear
Humidity
63%
Feels like
37°F
Dew Point
29°F
10 PM
39°F
0%
6mph
ENE
Partly Cloudy
Humidity
66%
Feels like
35°F
Dew Point
29°F
11 PM
38°F
0%
6mph
E
Partly Cloudy
Humidity
67%
Feels like
34°F
Dew Point
28°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

(Image provided by Pixabay.com)

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