Hourly Weather Forecast - Decatur, IL

12 AM
29°F
0%
10mph
SSE
Mostly Cloudy
Humidity
62%
Feels like
20°F
Dew Point
18°F
1 AM
29°F
0%
10mph
SSE
Mostly Cloudy
Humidity
61%
Feels like
20°F
Dew Point
18°F
2 AM
30°F
0%
11mph
SSE
Mostly Cloudy
Humidity
60%
Feels like
21°F
Dew Point
18°F
3 AM
30°F
10%
11mph
SSE
Mostly Cloudy
Humidity
60%
Feels like
21°F
Dew Point
18°F
4 AM
30°F
10%
11mph
SSE
Mostly Cloudy
Humidity
60%
Feels like
21°F
Dew Point
18°F
5 AM
30°F
20%
11mph
SSE
Cloudy
Humidity
60%
Feels like
21°F
Dew Point
19°F
6 AM
31°F
20%
11mph
SSE
Cloudy
Humidity
61%
Feels like
21°F
Dew Point
19°F
7 AM
31°F
20%
12mph
SSE
Cloudy
Humidity
61%
Feels like
22°F
Dew Point
19°F
7:14 AM
8 AM
32°F
20%
12mph
SSE
Cloudy
Humidity
59%
Feels like
23°F
Dew Point
20°F
9 AM
34°F
10%
13mph
SSE
Mostly Cloudy
Humidity
57%
Feels like
25°F
Dew Point
20°F
10 AM
36°F
10%
13mph
SSE
Mostly Cloudy
Humidity
54%
Feels like
27°F
Dew Point
21°F
11 AM
38°F
10%
13mph
SSE
Mostly Cloudy
Humidity
50%
Feels like
29°F
Dew Point
21°F
12 PM
40°F
10%
13mph
SSE
Partly Cloudy
Humidity
48%
Feels like
32°F
Dew Point
21°F
1 PM
41°F
10%
14mph
SSE
Partly Cloudy
Humidity
46%
Feels like
34°F
Dew Point
22°F
2 PM
42°F
10%
13mph
SSE
Mostly Sunny
Humidity
46%
Feels like
35°F
Dew Point
23°F
3 PM
42°F
10%
13mph
SSE
Mostly Sunny
Humidity
48%
Feels like
34°F
Dew Point
24°F
4 PM
41°F
10%
13mph
SSE
Mostly Sunny
Humidity
50%
Feels like
34°F
Dew Point
24°F
4:34 PM
5 PM
39°F
10%
13mph
SSE
Partly Cloudy
Humidity
55%
Feels like
31°F
Dew Point
24°F
6 PM
37°F
10%
13mph
SSE
Partly Cloudy
Humidity
59%
Feels like
29°F
Dew Point
25°F
7 PM
36°F
10%
13mph
S
Partly Cloudy
Humidity
64%
Feels like
28°F
Dew Point
25°F
8 PM
37°F
10%
13mph
S
Mostly Cloudy
Humidity
65%
Feels like
28°F
Dew Point
26°F
9 PM
37°F
10%
14mph
S
Mostly Cloudy
Humidity
67%
Feels like
29°F
Dew Point
27°F
10 PM
38°F
10%
14mph
S
Partly Cloudy
Humidity
69%
Feels like
29°F
Dew Point
29°F
11 PM
39°F
10%
14mph
S
Partly Cloudy
Humidity
71%
Feels like
31°F
Dew Point
30°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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