Hourly Weather Forecast - Iona, SD

12 AM
36°F
0%
13mph
WSW
Mostly Clear
Humidity
60%
Feels like
27°F
Dew Point
23°F
1 AM
36°F
0%
13mph
WSW
Partly Cloudy
Humidity
60%
Feels like
28°F
Dew Point
24°F
2 AM
36°F
0%
13mph
W
Partly Cloudy
Humidity
61%
Feels like
28°F
Dew Point
24°F
3 AM
37°F
0%
12mph
W
Mostly Cloudy
Humidity
61%
Feels like
29°F
Dew Point
25°F
4 AM
37°F
0%
12mph
WSW
Partly Cloudy
Humidity
63%
Feels like
29°F
Dew Point
25°F
5 AM
37°F
0%
11mph
W
Partly Cloudy
Humidity
63%
Feels like
30°F
Dew Point
26°F
6 AM
37°F
0%
11mph
W
Partly Cloudy
Humidity
64%
Feels like
30°F
Dew Point
26°F
7 AM
37°F
0%
11mph
WSW
Partly Cloudy
Humidity
65%
Feels like
30°F
Dew Point
27°F
7:13 AM
8 AM
38°F
0%
12mph
W
Partly Cloudy
Humidity
64%
Feels like
31°F
Dew Point
27°F
9 AM
41°F
0%
13mph
W
Mostly Sunny
Humidity
62%
Feels like
34°F
Dew Point
29°F
10 AM
45°F
0%
13mph
W
Mostly Sunny
Humidity
59%
Feels like
39°F
Dew Point
32°F
11 AM
48°F
0%
14mph
WNW
Partly Cloudy
Humidity
57%
Feels like
43°F
Dew Point
34°F
12 PM
50°F
0%
15mph
WNW
Partly Cloudy
Humidity
56%
Feels like
44°F
Dew Point
35°F
1 PM
51°F
0%
17mph
NW
Mostly Cloudy
Humidity
55%
Feels like
51°F
Dew Point
35°F
2 PM
50°F
0%
17mph
NW
Mostly Cloudy
Humidity
56%
Feels like
50°F
Dew Point
35°F
3 PM
48°F
0%
16mph
NW
Cloudy
Humidity
60%
Feels like
42°F
Dew Point
35°F
4 PM
45°F
0%
14mph
NW
Cloudy
Humidity
66%
Feels like
38°F
Dew Point
34°F
4:09 PM
5 PM
42°F
0%
12mph
WNW
Cloudy
Humidity
71%
Feels like
35°F
Dew Point
33°F
6 PM
40°F
0%
10mph
WNW
Mostly Cloudy
Humidity
75%
Feels like
33°F
Dew Point
32°F
7 PM
38°F
0%
8mph
W
Mostly Cloudy
Humidity
78%
Feels like
32°F
Dew Point
32°F
8 PM
36°F
0%
7mph
WSW
Partly Cloudy
Humidity
82%
Feels like
30°F
Dew Point
31°F
9 PM
34°F
0%
7mph
SW
Partly Cloudy
Humidity
85%
Feels like
28°F
Dew Point
30°F
10 PM
33°F
0%
6mph
SW
Mostly Cloudy
Humidity
89%
Feels like
27°F
Dew Point
30°F
11 PM
32°F
0%
7mph
SSW
Mostly Cloudy
Humidity
91%
Feels like
26°F
Dew Point
30°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today'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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