Hourly Weather Forecast - Decatur, IA

12 AM
29°F
10%
5mph
N
Partly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
23°F
1 AM
29°F
10%
5mph
N
Partly Cloudy
Humidity
75%
Feels like
23°F
Dew Point
22°F
2 AM
28°F
10%
5mph
N
Partly Cloudy
Humidity
73%
Feels like
23°F
Dew Point
21°F
3 AM
28°F
10%
5mph
N
Partly Cloudy
Humidity
71%
Feels like
22°F
Dew Point
20°F
4 AM
28°F
10%
5mph
N
Partly Cloudy
Humidity
70%
Feels like
22°F
Dew Point
19°F
5 AM
27°F
10%
5mph
NNE
Partly Cloudy
Humidity
72%
Feels like
21°F
Dew Point
19°F
6 AM
26°F
10%
5mph
NNE
Partly Cloudy
Humidity
74%
Feels like
20°F
Dew Point
19°F
7 AM
26°F
10%
5mph
NNE
Partly Cloudy
Humidity
74%
Feels like
20°F
Dew Point
19°F
7:36 AM
8 AM
28°F
10%
5mph
NE
Partly Cloudy
Humidity
69%
Feels like
23°F
Dew Point
19°F
9 AM
31°F
10%
5mph
NE
Partly Cloudy
Humidity
62%
Feels like
25°F
Dew Point
19°F
10 AM
33°F
10%
5mph
NE
Partly Cloudy
Humidity
55%
Feels like
29°F
Dew Point
19°F
11 AM
36°F
10%
5mph
NE
Mostly Cloudy
Humidity
49%
Feels like
31°F
Dew Point
19°F
12 PM
37°F
10%
6mph
NE
Mostly Cloudy
Humidity
45%
Feels like
33°F
Dew Point
18°F
1 PM
38°F
10%
6mph
NE
Mostly Cloudy
Humidity
43%
Feels like
33°F
Dew Point
17°F
2 PM
38°F
10%
6mph
NE
Mostly Cloudy
Humidity
42%
Feels like
33°F
Dew Point
17°F
3 PM
37°F
10%
6mph
NE
Mostly Cloudy
Humidity
44%
Feels like
32°F
Dew Point
17°F
4 PM
35°F
0%
6mph
ENE
Mostly Cloudy
Humidity
48%
Feels like
30°F
Dew Point
17°F
4:50 PM
5 PM
33°F
10%
5mph
ENE
Mostly Cloudy
Humidity
53%
Feels like
28°F
Dew Point
18°F
6 PM
32°F
30%
5mph
ENE
30% Chance of Flurries
Humidity
58%
Feels like
27°F
Dew Point
19°F
7 PM
31°F
30%
5mph
E
30% Chance of Flurries
Humidity
61%
Feels like
26°F
Dew Point
19°F
8 PM
30°F
30%
4mph
E
30% Chance of Snow
Humidity
63%
Feels like
26°F
Dew Point
19°F
9 PM
30°F
30%
4mph
ESE
30 % Chance of Heavy Snow
Humidity
64%
Feels like
25°F
Dew Point
20°F
10 PM
29°F
30%
5mph
ESE
30 % Chance of Heavy Snow
Humidity
66%
Feels like
24°F
Dew Point
20°F
11 PM
29°F
30%
5mph
ESE
30% Chance Snow Showers
Humidity
68%
Feels like
24°F
Dew Point
20°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Wednesday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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