Hourly Weather Forecast - Sullivan, IL

12 AM
38°F
0%
6mph
E
Partly Cloudy
Humidity
67%
Feels like
33°F
Dew Point
28°F
1 AM
37°F
0%
6mph
ESE
Mostly Cloudy
Humidity
68%
Feels like
33°F
Dew Point
27°F
2 AM
36°F
0%
6mph
ESE
Mostly Cloudy
Humidity
69%
Feels like
32°F
Dew Point
27°F
3 AM
36°F
0%
6mph
ESE
Mostly Cloudy
Humidity
70%
Feels like
30°F
Dew Point
27°F
4 AM
35°F
0%
6mph
SE
Mostly Cloudy
Humidity
73%
Feels like
29°F
Dew Point
27°F
5 AM
34°F
0%
6mph
SE
Partly Cloudy
Humidity
74%
Feels like
28°F
Dew Point
27°F
6 AM
34°F
0%
7mph
SE
Partly Cloudy
Humidity
75%
Feels like
28°F
Dew Point
27°F
6:51 AM
7 AM
35°F
0%
7mph
SE
Mostly Sunny
Humidity
71%
Feels like
30°F
Dew Point
27°F
8 AM
38°F
0%
8mph
SSE
Mostly Sunny
Humidity
65%
Feels like
33°F
Dew Point
28°F
9 AM
43°F
0%
9mph
SSE
Partly Cloudy
Humidity
58%
Feels like
38°F
Dew Point
29°F
10 AM
47°F
0%
9mph
SSE
Partly Cloudy
Humidity
51%
Feels like
42°F
Dew Point
30°F
11 AM
50°F
0%
9mph
S
Partly Cloudy
Humidity
47%
Feels like
50°F
Dew Point
30°F
12 PM
53°F
0%
9mph
S
Mostly Cloudy
Humidity
43%
Feels like
53°F
Dew Point
31°F
1 PM
55°F
0%
9mph
S
Mostly Cloudy
Humidity
40%
Feels like
55°F
Dew Point
31°F
2 PM
56°F
0%
9mph
SSW
Mostly Cloudy
Humidity
39%
Feels like
56°F
Dew Point
32°F
3 PM
57°F
10%
9mph
SSW
Partly Cloudy
Humidity
40%
Feels like
57°F
Dew Point
33°F
4 PM
56°F
10%
8mph
SSW
Partly Cloudy
Humidity
42%
Feels like
56°F
Dew Point
34°F
5 PM
56°F
20%
7mph
SSW
Partly Cloudy
Humidity
45%
Feels like
56°F
Dew Point
35°F
6 PM
54°F
30%
6mph
SSW
30% Chance Rain Showers
Humidity
51%
Feels like
54°F
Dew Point
36°F
7 PM
51°F
20%
5mph
SSW
Partly Cloudy
Humidity
57%
Feels like
51°F
Dew Point
37°F
7:10 PM
8 PM
49°F
10%
5mph
SSW
Mostly Clear
Humidity
63%
Feels like
47°F
Dew Point
37°F
9 PM
47°F
10%
5mph
SSW
Mostly Clear
Humidity
68%
Feels like
44°F
Dew Point
37°F
10 PM
46°F
10%
4mph
SSW
Clear
Humidity
70%
Feels like
44°F
Dew Point
37°F
11 PM
45°F
20%
1mph
SSW
Clear
Humidity
72%
Feels like
45°F
Dew Point
37°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.

Today's Weather Outlook

Today's 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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