Hourly Weather Forecast - Iona, SD

11 AM
42°F
0%
10mph
W
Mostly Sunny
Humidity
59%
Feels like
36°F
Dew Point
29°F
12 PM
45°F
0%
10mph
W
Mostly Sunny
Humidity
57%
Feels like
39°F
Dew Point
30°F
1 PM
46°F
0%
10mph
WSW
Mostly Sunny
Humidity
56%
Feels like
42°F
Dew Point
31°F
2 PM
47°F
0%
10mph
WSW
Mostly Sunny
Humidity
57%
Feels like
42°F
Dew Point
32°F
3 PM
45°F
0%
10mph
WSW
Mostly Sunny
Humidity
61%
Feels like
40°F
Dew Point
32°F
4 PM
42°F
0%
10mph
WSW
Mostly Sunny
Humidity
67%
Feels like
36°F
Dew Point
31°F
4:09 PM
5 PM
38°F
0%
10mph
WSW
Mostly Clear
Humidity
71%
Feels like
32°F
Dew Point
30°F
6 PM
37°F
0%
10mph
SW
Mostly Clear
Humidity
72%
Feels like
30°F
Dew Point
29°F
7 PM
36°F
0%
10mph
SW
Mostly Clear
Humidity
71%
Feels like
28°F
Dew Point
27°F
8 PM
35°F
0%
11mph
SW
Mostly Clear
Humidity
69%
Feels like
27°F
Dew Point
26°F
9 PM
34°F
0%
11mph
SW
Mostly Clear
Humidity
68%
Feels like
26°F
Dew Point
25°F
10 PM
34°F
0%
11mph
SW
Mostly Clear
Humidity
66%
Feels like
26°F
Dew Point
24°F
11 PM
34°F
0%
12mph
WSW
Mostly Clear
Humidity
65%
Feels like
26°F
Dew Point
24°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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