Hourly Weather Forecast - Iona, SD

12 AM
28°F
20%
7mph
S
Partly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
22°F
1 AM
27°F
20%
7mph
S
Partly Cloudy
Humidity
80%
Feels like
20°F
Dew Point
22°F
2 AM
27°F
10%
7mph
SSW
Partly Cloudy
Humidity
80%
Feels like
20°F
Dew Point
22°F
3 AM
27°F
10%
6mph
SSW
Partly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
22°F
4 AM
27°F
10%
6mph
SSW
Partly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
21°F
5 AM
27°F
10%
6mph
SSW
Mostly Clear
Humidity
78%
Feels like
20°F
Dew Point
21°F
6 AM
27°F
10%
6mph
SSW
Mostly Clear
Humidity
77%
Feels like
20°F
Dew Point
21°F
7 AM
28°F
10%
6mph
SSW
Clear
Humidity
76%
Feels like
21°F
Dew Point
21°F
7:16 AM
8 AM
29°F
10%
6mph
SSW
Sunny
Humidity
73%
Feels like
22°F
Dew Point
21°F
9 AM
31°F
10%
6mph
SW
Sunny
Humidity
68%
Feels like
25°F
Dew Point
22°F
10 AM
35°F
10%
7mph
SW
Sunny
Humidity
63%
Feels like
29°F
Dew Point
23°F
11 AM
38°F
0%
8mph
WSW
Sunny
Humidity
58%
Feels like
32°F
Dew Point
24°F
12 PM
39°F
0%
7mph
WNW
Sunny
Humidity
54%
Feels like
34°F
Dew Point
24°F
1 PM
41°F
0%
10mph
NW
Sunny
Humidity
51%
Feels like
35°F
Dew Point
24°F
2 PM
41°F
0%
11mph
NNW
Sunny
Humidity
51%
Feels like
34°F
Dew Point
24°F
3 PM
39°F
0%
8mph
N
Sunny
Humidity
55%
Feels like
33°F
Dew Point
24°F
4 PM
36°F
0%
5mph
NE
Mostly Sunny
Humidity
63%
Feels like
32°F
Dew Point
25°F
4:11 PM
5 PM
34°F
10%
6mph
E
Mostly Clear
Humidity
70%
Feels like
28°F
Dew Point
25°F
6 PM
32°F
10%
7mph
ESE
Partly Cloudy
Humidity
74%
Feels like
26°F
Dew Point
25°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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