Hourly Weather Forecast - Harrison, SD

12 AM
36°F
10%
12mph
S
Mostly Cloudy
Humidity
65%
Feels like
28°F
Dew Point
25°F
1 AM
36°F
10%
12mph
S
Mostly Cloudy
Humidity
66%
Feels like
27°F
Dew Point
25°F
2 AM
35°F
10%
13mph
S
Partly Cloudy
Humidity
67%
Feels like
26°F
Dew Point
25°F
3 AM
34°F
10%
13mph
S
Partly Cloudy
Humidity
69%
Feels like
25°F
Dew Point
25°F
4 AM
34°F
10%
13mph
S
Mostly Clear
Humidity
70%
Feels like
25°F
Dew Point
25°F
5 AM
33°F
10%
13mph
S
Mostly Clear
Humidity
71%
Feels like
24°F
Dew Point
25°F
6 AM
33°F
10%
13mph
S
Clear
Humidity
72%
Feels like
24°F
Dew Point
25°F
7 AM
34°F
10%
13mph
S
Mostly Clear
Humidity
73%
Feels like
24°F
Dew Point
26°F
8 AM
34°F
10%
13mph
S
Mostly Clear
Humidity
75%
Feels like
25°F
Dew Point
27°F
8:04 AM
9 AM
36°F
10%
13mph
S
Mostly Sunny
Humidity
75%
Feels like
27°F
Dew Point
28°F
10 AM
38°F
10%
13mph
S
Mostly Sunny
Humidity
72%
Feels like
30°F
Dew Point
30°F
11 AM
42°F
0%
13mph
S
Mostly Sunny
Humidity
67%
Feels like
35°F
Dew Point
32°F
12 PM
45°F
0%
14mph
S
Mostly Sunny
Humidity
63%
Feels like
39°F
Dew Point
34°F
1 PM
48°F
0%
14mph
S
Sunny
Humidity
61%
Feels like
42°F
Dew Point
35°F
2 PM
49°F
0%
14mph
S
Sunny
Humidity
60%
Feels like
44°F
Dew Point
36°F
3 PM
50°F
0%
13mph
S
Sunny
Humidity
61%
Feels like
45°F
Dew Point
37°F
4 PM
48°F
0%
12mph
S
Mostly Sunny
Humidity
64%
Feels like
43°F
Dew Point
37°F
5 PM
45°F
0%
11mph
S
Mostly Sunny
Humidity
70%
Feels like
40°F
Dew Point
36°F
5:01 PM
6 PM
43°F
0%
10mph
S
Partly Cloudy
Humidity
75%
Feels like
37°F
Dew Point
35°F
7 PM
41°F
0%
9mph
SSW
Mostly Clear
Humidity
76%
Feels like
36°F
Dew Point
34°F
8 PM
40°F
0%
9mph
SSW
Mostly Clear
Humidity
77%
Feels like
35°F
Dew Point
34°F
9 PM
40°F
0%
8mph
SW
Partly Cloudy
Humidity
78%
Feels like
34°F
Dew Point
33°F
10 PM
39°F
0%
7mph
WSW
Mostly Clear
Humidity
79%
Feels like
34°F
Dew Point
33°F
11 PM
38°F
0%
7mph
WNW
Mostly Clear
Humidity
80%
Feels like
32°F
Dew Point
32°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday'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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