Hourly Weather Forecast - Groton, SD

12 AM
26°F
10%
7mph
SW
Cloudy
Humidity
74%
Feels like
18°F
Dew Point
19°F
1 AM
26°F
10%
6mph
WSW
Mostly Cloudy
Humidity
75%
Feels like
19°F
Dew Point
19°F
2 AM
26°F
10%
6mph
W
Partly Cloudy
Humidity
75%
Feels like
20°F
Dew Point
19°F
3 AM
27°F
10%
6mph
WNW
Partly Cloudy
Humidity
75%
Feels like
20°F
Dew Point
20°F
4 AM
27°F
10%
6mph
WNW
Partly Cloudy
Humidity
74%
Feels like
20°F
Dew Point
20°F
5 AM
27°F
10%
6mph
NW
Mostly Cloudy
Humidity
76%
Feels like
20°F
Dew Point
21°F
6 AM
28°F
10%
7mph
NW
Mostly Cloudy
Humidity
77%
Feels like
20°F
Dew Point
21°F
7 AM
28°F
10%
7mph
NW
Cloudy
Humidity
78%
Feels like
20°F
Dew Point
22°F
8 AM
28°F
10%
7mph
NNW
Cloudy
Humidity
78%
Feels like
20°F
Dew Point
22°F
8:08 AM
9 AM
28°F
10%
7mph
NNW
Cloudy
Humidity
77%
Feels like
21°F
Dew Point
22°F
10 AM
29°F
20%
8mph
NNW
Cloudy
Humidity
75%
Feels like
21°F
Dew Point
22°F
11 AM
30°F
20%
8mph
NNW
Cloudy
Humidity
72%
Feels like
23°F
Dew Point
22°F
12 PM
31°F
20%
8mph
NNW
Mostly Cloudy
Humidity
69%
Feels like
24°F
Dew Point
22°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

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

Cold Air Damming - Cause And Effects

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