Hourly Weather Forecast - Harrison, SD

12 AM
21°F
30%
9mph
ESE
30% Chance of Snow
Humidity
84%
Feels like
11°F
Dew Point
17°F
1 AM
21°F
30%
9mph
ESE
30% Chance of Snow
Humidity
85%
Feels like
11°F
Dew Point
18°F
2 AM
21°F
30%
9mph
ESE
30% Chance of Snow
Humidity
86%
Feels like
11°F
Dew Point
18°F
3 AM
22°F
30%
9mph
ESE
30% Chance of Flurries
Humidity
87%
Feels like
11°F
Dew Point
18°F
4 AM
22°F
30%
9mph
ESE
30% Chance of Flurries
Humidity
88%
Feels like
11°F
Dew Point
19°F
5 AM
22°F
10%
10mph
ESE
Mostly Cloudy
Humidity
88%
Feels like
11°F
Dew Point
19°F
6 AM
22°F
10%
10mph
ESE
Mostly Cloudy
Humidity
89%
Feels like
11°F
Dew Point
19°F
7 AM
22°F
20%
11mph
SE
Mostly Cloudy
Humidity
89%
Feels like
11°F
Dew Point
20°F
7:56 AM
8 AM
23°F
20%
12mph
SE
Mostly Cloudy
Humidity
90%
Feels like
11°F
Dew Point
21°F
9 AM
24°F
30%
11mph
SE
30% Chance of Flurries
Humidity
91%
Feels like
13°F
Dew Point
22°F
10 AM
25°F
30%
7mph
ESE
30% Chance Frozen Mix
Humidity
91%
Feels like
17°F
Dew Point
23°F
11 AM
27°F
30%
6mph
NE
30% Chance of Flurries
Humidity
90%
Feels like
21°F
Dew Point
24°F
12 PM
28°F
30%
9mph
NNE
30% Chance of Flurries
Humidity
90%
Feels like
20°F
Dew Point
26°F
1 PM
29°F
20%
10mph
N
Mostly Cloudy
Humidity
89%
Feels like
20°F
Dew Point
26°F
2 PM
30°F
10%
9mph
N
Mostly Cloudy
Humidity
88%
Feels like
22°F
Dew Point
27°F
3 PM
30°F
10%
9mph
N
Mostly Cloudy
Humidity
87%
Feels like
23°F
Dew Point
27°F
4 PM
30°F
10%
8mph
NNE
Mostly Cloudy
Humidity
88%
Feels like
22°F
Dew Point
27°F
4:57 PM
5 PM
29°F
10%
8mph
NE
Mostly Cloudy
Humidity
90%
Feels like
21°F
Dew Point
26°F
6 PM
28°F
20%
9mph
NE
Mostly Cloudy
Humidity
92%
Feels like
19°F
Dew Point
26°F
7 PM
27°F
10%
8mph
NE
Mostly Cloudy
Humidity
92%
Feels like
19°F
Dew Point
25°F
8 PM
27°F
10%
8mph
NNE
Mostly Cloudy
Humidity
92%
Feels like
19°F
Dew Point
25°F
9 PM
27°F
20%
9mph
NNE
Mostly Cloudy
Humidity
92%
Feels like
18°F
Dew Point
25°F
10 PM
27°F
30%
10mph
N
30% Chance Frozen Mix
Humidity
91%
Feels like
18°F
Dew Point
25°F
11 PM
28°F
30%
13mph
NNW
30% Chance Frozen Mix
Humidity
90%
Feels like
17°F
Dew Point
25°F

Rainfall Forecast for Northwest through Thursday

Persistent, Flooding Rain Impacts the Northwest

A fast-moving series of atmospheric rivers continue to drench the Pacific Northwest today through Thursday.

Snowfall forecast Through Tonight

Impactful Winter Storm Exits Virginia, N.C. Tonight

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide