Hourly Weather Forecast - Decatur, IA

12 AM
17°F
0%
13mph
NW
Partly Cloudy
Humidity
59%
Feels like
3°F
Dew Point
5°F
1 AM
16°F
0%
11mph
NW
Mostly Clear
Humidity
58%
Feels like
3°F
Dew Point
4°F
2 AM
16°F
0%
10mph
NW
Mostly Clear
Humidity
58%
Feels like
4°F
Dew Point
4°F
3 AM
16°F
0%
9mph
NW
Clear
Humidity
57%
Feels like
5°F
Dew Point
3°F
4 AM
15°F
0%
7mph
NW
Clear
Humidity
57%
Feels like
5°F
Dew Point
3°F
5 AM
15°F
0%
6mph
NW
Clear
Humidity
58%
Feels like
6°F
Dew Point
3°F
6 AM
15°F
0%
5mph
WNW
Clear
Humidity
58%
Feels like
7°F
Dew Point
3°F
7 AM
17°F
0%
4mph
W
Clear
Humidity
56%
Feels like
10°F
Dew Point
4°F
7:34 AM
8 AM
19°F
0%
4mph
WSW
Sunny
Humidity
53%
Feels like
12°F
Dew Point
4°F
9 AM
22°F
0%
6mph
SW
Sunny
Humidity
48%
Feels like
14°F
Dew Point
5°F
10 AM
25°F
0%
6mph
SSW
Mostly Sunny
Humidity
43%
Feels like
17°F
Dew Point
6°F
11 AM
28°F
0%
9mph
S
Partly Cloudy
Humidity
39%
Feels like
20°F
Dew Point
7°F
12 PM
31°F
0%
11mph
S
Mostly Cloudy
Humidity
36%
Feels like
22°F
Dew Point
8°F
1 PM
34°F
0%
13mph
S
Partly Cloudy
Humidity
34%
Feels like
25°F
Dew Point
9°F
2 PM
36°F
0%
14mph
S
Partly Cloudy
Humidity
33%
Feels like
27°F
Dew Point
10°F
3 PM
37°F
0%
14mph
S
Mostly Sunny
Humidity
34%
Feels like
28°F
Dew Point
11°F
4 PM
36°F
0%
14mph
S
Mostly Sunny
Humidity
37%
Feels like
27°F
Dew Point
13°F
4:50 PM
5 PM
35°F
0%
13mph
S
Clear
Humidity
42%
Feels like
26°F
Dew Point
14°F
6 PM
34°F
0%
13mph
S
Clear
Humidity
46%
Feels like
25°F
Dew Point
16°F
7 PM
34°F
0%
13mph
S
Clear
Humidity
51%
Feels like
25°F
Dew Point
17°F
8 PM
33°F
0%
13mph
S
Mostly Clear
Humidity
55%
Feels like
24°F
Dew Point
19°F
9 PM
33°F
0%
13mph
S
Mostly Clear
Humidity
58%
Feels like
23°F
Dew Point
20°F
10 PM
33°F
0%
13mph
S
Mostly Clear
Humidity
61%
Feels like
23°F
Dew Point
21°F
11 PM
33°F
0%
13mph
SSW
Mostly Clear
Humidity
63%
Feels like
23°F
Dew Point
21°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide