Hourly Weather Forecast - Castlewood, SD

12 AM
26°F
10%
8mph
SSW
Cloudy
Humidity
83%
Feels like
18°F
Dew Point
22°F
1 AM
26°F
10%
7mph
SW
Mostly Cloudy
Humidity
84%
Feels like
19°F
Dew Point
22°F
2 AM
27°F
10%
6mph
WSW
Mostly Cloudy
Humidity
84%
Feels like
19°F
Dew Point
22°F
3 AM
27°F
10%
6mph
W
Mostly Cloudy
Humidity
84%
Feels like
19°F
Dew Point
22°F
4 AM
26°F
10%
7mph
WNW
Mostly Cloudy
Humidity
85%
Feels like
19°F
Dew Point
22°F
5 AM
26°F
10%
7mph
NW
Mostly Cloudy
Humidity
86%
Feels like
19°F
Dew Point
22°F
6 AM
26°F
10%
7mph
NW
Mostly Cloudy
Humidity
86%
Feels like
18°F
Dew Point
22°F
7 AM
25°F
10%
7mph
NW
Mostly Cloudy
Humidity
87%
Feels like
17°F
Dew Point
22°F
8 AM
24°F
10%
7mph
NW
Cloudy
Humidity
89%
Feels like
16°F
Dew Point
22°F
8:01 AM
9 AM
24°F
10%
7mph
NW
Cloudy
Humidity
88%
Feels like
16°F
Dew Point
21°F
10 AM
25°F
10%
7mph
NNW
Mostly Cloudy
Humidity
86%
Feels like
17°F
Dew Point
22°F
11 AM
27°F
10%
7mph
NNW
Partly Cloudy
Humidity
83%
Feels like
19°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

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

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide