Hourly Weather Forecast - Castlewood, SD

12 AM
26°F
0%
9mph
SSW
Partly Cloudy
Humidity
89%
Feels like
16°F
Dew Point
23°F
1 AM
27°F
0%
10mph
SSW
Partly Cloudy
Humidity
87%
Feels like
17°F
Dew Point
24°F
2 AM
29°F
0%
11mph
SSW
Partly Cloudy
Humidity
85%
Feels like
19°F
Dew Point
25°F
3 AM
30°F
0%
11mph
SSW
Mostly Cloudy
Humidity
83%
Feels like
20°F
Dew Point
25°F
4 AM
31°F
0%
11mph
SSW
Mostly Cloudy
Humidity
82%
Feels like
22°F
Dew Point
26°F
5 AM
31°F
0%
11mph
SSW
Cloudy
Humidity
81%
Feels like
22°F
Dew Point
26°F
6 AM
31°F
0%
10mph
SW
Cloudy
Humidity
81%
Feels like
23°F
Dew Point
26°F
7 AM
32°F
0%
10mph
SW
Mostly Cloudy
Humidity
82%
Feels like
23°F
Dew Point
27°F
7:59 AM
8 AM
32°F
0%
10mph
SW
Partly Cloudy
Humidity
84%
Feels like
23°F
Dew Point
28°F
9 AM
33°F
0%
10mph
WSW
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
29°F
10 AM
34°F
0%
11mph
WSW
Partly Cloudy
Humidity
84%
Feels like
26°F
Dew Point
30°F
11 AM
36°F
0%
13mph
WSW
Partly Cloudy
Humidity
82%
Feels like
28°F
Dew Point
31°F
12 PM
38°F
0%
14mph
W
Mostly Sunny
Humidity
81%
Feels like
30°F
Dew Point
33°F
1 PM
39°F
0%
15mph
W
Mostly Sunny
Humidity
80%
Feels like
31°F
Dew Point
33°F
2 PM
40°F
0%
15mph
W
Partly Cloudy
Humidity
79%
Feels like
32°F
Dew Point
34°F
3 PM
40°F
0%
15mph
W
Partly Cloudy
Humidity
79%
Feels like
32°F
Dew Point
35°F
4 PM
40°F
0%
15mph
W
Mostly Sunny
Humidity
81%
Feels like
31°F
Dew Point
34°F
4:48 PM
5 PM
38°F
0%
15mph
WNW
Mostly Clear
Humidity
83%
Feels like
29°F
Dew Point
33°F
6 PM
37°F
0%
14mph
WNW
Clear
Humidity
85%
Feels like
28°F
Dew Point
33°F
7 PM
35°F
0%
13mph
WNW
Mostly Clear
Humidity
87%
Feels like
26°F
Dew Point
32°F
8 PM
34°F
0%
11mph
WNW
Partly Cloudy
Humidity
89%
Feels like
25°F
Dew Point
31°F
9 PM
33°F
0%
10mph
WNW
Partly Cloudy
Humidity
91%
Feels like
25°F
Dew Point
30°F
10 PM
31°F
0%
9mph
WNW
Partly Cloudy
Humidity
91%
Feels like
24°F
Dew Point
29°F
11 PM
30°F
0%
8mph
WNW
Partly Cloudy
Humidity
92%
Feels like
23°F
Dew Point
28°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend 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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