Hourly Weather Forecast - Sullivan, IL

12 AM
44°F
30%
3mph
NNE
30% Chance Rain Showers
Humidity
74%
Feels like
44°F
Dew Point
37°F
1 AM
43°F
30%
6mph
NNE
30% Chance Rain Showers
Humidity
76%
Feels like
39°F
Dew Point
36°F
2 AM
42°F
30%
7mph
NNE
30% Chance Rain Showers
Humidity
79%
Feels like
37°F
Dew Point
36°F
3 AM
41°F
30%
7mph
NE
30% Chance Rain Showers
Humidity
81%
Feels like
36°F
Dew Point
35°F
4 AM
39°F
30%
7mph
NE
30% Chance of Light Rain
Humidity
84%
Feels like
34°F
Dew Point
35°F
5 AM
38°F
30%
7mph
NE
30% Chance of Light Rain
Humidity
86%
Feels like
33°F
Dew Point
34°F
6 AM
37°F
30%
7mph
NE
30% Chance of Light Rain
Humidity
87%
Feels like
32°F
Dew Point
34°F
6:50 AM
7 AM
39°F
20%
7mph
NE
Cloudy
Humidity
82%
Feels like
33°F
Dew Point
34°F
8 AM
42°F
10%
8mph
ENE
Cloudy
Humidity
75%
Feels like
36°F
Dew Point
34°F
9 AM
45°F
10%
9mph
ENE
Cloudy
Humidity
67%
Feels like
40°F
Dew Point
35°F
10 AM
49°F
0%
10mph
E
Cloudy
Humidity
61%
Feels like
44°F
Dew Point
36°F
11 AM
52°F
10%
10mph
E
Cloudy
Humidity
55%
Feels like
52°F
Dew Point
36°F
12 PM
54°F
10%
9mph
ESE
Mostly Cloudy
Humidity
51%
Feels like
54°F
Dew Point
37°F
1 PM
56°F
10%
9mph
ESE
Mostly Cloudy
Humidity
47%
Feels like
56°F
Dew Point
37°F
2 PM
58°F
10%
9mph
ESE
Mostly Cloudy
Humidity
45%
Feels like
58°F
Dew Point
36°F
3 PM
57°F
10%
9mph
ESE
Mostly Cloudy
Humidity
45%
Feels like
57°F
Dew Point
36°F
4 PM
56°F
10%
9mph
SE
Partly Cloudy
Humidity
47%
Feels like
56°F
Dew Point
36°F
5 PM
55°F
10%
9mph
SE
Partly Cloudy
Humidity
50%
Feels like
55°F
Dew Point
37°F
6 PM
53°F
10%
8mph
SE
Partly Cloudy
Humidity
54%
Feels like
53°F
Dew Point
37°F
7 PM
52°F
10%
8mph
SE
Partly Cloudy
Humidity
57%
Feels like
52°F
Dew Point
37°F
7:11 PM
8 PM
51°F
10%
8mph
SE
Mostly Clear
Humidity
60%
Feels like
51°F
Dew Point
37°F
9 PM
50°F
0%
8mph
SE
Clear
Humidity
61%
Feels like
50°F
Dew Point
37°F
10 PM
50°F
0%
9mph
SSE
Clear
Humidity
62%
Feels like
46°F
Dew Point
37°F
11 PM
49°F
0%
9mph
SSE
Clear
Humidity
63%
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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