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December 17th, 2025 :: 9:56 pm MST   

Local Weather Report for
Custer
South Dakota, United States

 Current Custer Weather Conditions Updated December 17th at 8:53 pm 
Temperature:30°F Dew Point:10°F
Barometer:29.44 inHg Wind:N 43 Mph
Humidity:42.1% Visibility:0M
 
 Custer Weather Forecast Summary  
 
Today
Dec 17th
Thursday
Dec 18th
Friday
Dec 19th
Saturday
Dec 20th
Sunday
Dec 21st
Cloudy Cloudy Cloudy Cloudy Cloudy
57°F
30°F
16°F
56°F
26°F
37°F
26°F
40°F
26°F
 
 Custer Detailed Weather Forecast  
 
Wednesday, December 17th, 2025
Evening Temperature: 34°F
Clear with a chance of flurries or showers. Risk of freezing rain. Wind 35 to 45 mph.
Thursday, December 18th, 2025
Overnight Temperature: 19°F
Clear. Wind 55 to 65 mph.
Morning Temperature: 29°F
Cloudy. Windy.
Afternoon Temperature: 23°F
Cloudy. Windy at times.
Evening Temperature: 20°F
Cloudy.
Friday, December 19th, 2025
Overnight Temperature: 31°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 54°F
Sunny. Wind 35 to 45 mph.
Afternoon Temperature: 51°F
Cloudy. Wind 25 to 40 mph.
Evening Temperature: 40°F
Cloudy. Windy.
Saturday, December 20th, 2025
Overnight Temperature: 31°F
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: 36°F
Sunny with cloudy periods with a slight chance of showers. Showers possibly mixed with wet flurries. Windy.
Afternoon Temperature: 28°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 27°F
Cloudy.
Sunday, December 21st, 2025
Overnight Temperature: 27°F
Cloudy.
Morning Temperature: 38°F
Cloudy.
Afternoon Temperature: 35°F
A mix of cloud and sun.
Evening Temperature: 38°F
Cloudy. Windy at times.
Monday, December 22nd, 2025
Overnight Temperature: 38°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 53°F
Sunny. Windy.
Afternoon Temperature: 46°F
Cloudy. Windy at times.
Evening Temperature: 42°F
Cloudy.
Tuesday, December 23rd, 2025
Overnight Temperature: 37°F
Cloudy.
Morning Temperature: 54°F
Cloudy. Windy at times.
Afternoon Temperature: 50°F
Cloudy.
Evening Temperature: 50°F
Cloudy. Windy at times.
Wednesday, December 24th, 2025
Overnight Temperature: 50°F
Cloudy. Windy.
Morning Temperature: 57°F
Sunny. Wind 35 to 45 mph.
Afternoon Temperature: 52°F
A mix of sun and cloud. Wind 20 to 30 mph.
Evening Temperature: 43°F
Cloudy. Wind 25 to 40 mph.
Thursday, December 25th, 2025
Overnight Temperature: 32°F
Cloudy.
Morning Temperature: 44°F
Sunny. Windy at times.
Afternoon Temperature: 34°F
Sunny. Windy at times.
Evening Temperature: 29°F
Cloudy.





 

  [ Local Weather Report ]
Rapid City, SD 
8:52 PM  41°F
Mostly Clear
 
Box Elder, SD 
 
Sturgis, SD 
8:55 PM  39°F
 
 
Spearfish, SD 
8:55 PM  37°F
 
 
Chadron, NE 
8:53 PM  37°F
Overcast
 
Pine Ridge, SD 
8:52 PM  34°F
light snow mist
 
Belle Fourche, WY 
 
Philip, SD 
8:55 PM  46°F
Overcast
 
Gillette, WY 
8:53 PM  36°F
 
 
Douglas, WY 
8:53 PM  34°F
Overcast

 
This WeatherCity Weather Forecast for Custer, South Dakota, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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