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Sunrise:  7:18 am
Sunset:  4:53 pm
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First Quarter
Jan 26

Full Moon
Feb 3

Last Quarter
Feb 11

New Moon
Feb 18




January 21st, 2026 :: 6:52 pm MST   

Local Weather Report for
Custer
South Dakota, United States

 Current Custer Weather Conditions Updated January 21st at 5:53 pm 
Temperature:16°F Dew Point:-9°F
Barometer:30.01 inHg Wind: 13 Mph
Humidity:19.1% Visibility:0M
 
 Custer Weather Forecast Summary  
 
Today
Jan 21st
Thursday
Jan 22nd
Friday
Jan 23rd
Saturday
Jan 24th
Sunday
Jan 25th
Cloudy Cloudy Cloudy Cloudy Cloudy
29°F
25°F
-4°F
2°F
-6°F
26°F
3°F
7°F
-7°F
 
 Custer Detailed Weather Forecast  
 
Wednesday, January 21st, 2026
Evening Temperature: 20°F
A mix of cloudy and clear skies. Windy at times.
Thursday, January 22nd, 2026
Overnight Temperature: 17°F
A mix of cloudy and clear skies.
Morning Temperature: 24°F
Cloudy.
Afternoon Temperature: 11°F
Cloudy with a chance of flurries.
Evening Temperature: -2°F
Cloudy with a chance of flurries. Windy at times.
Friday, January 23rd, 2026
Overnight Temperature: -5°F
Cloudy.
Morning Temperature: 0°F
Cloudy with a slight chance of flurries.
Afternoon Temperature: -1°F
A mix of cloud and sun.
Evening Temperature: 1°F
Clear.
Saturday, January 24th, 2026
Overnight Temperature: 5°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 23°F
Sunny with cloudy periods. Wind 20 to 30 mph.
Afternoon Temperature: 15°F
Mostly sunny. Windy.
Evening Temperature: 10°F
Cloudy with a chance of flurries.
Sunday, January 25th, 2026
Overnight Temperature: 1°F
Cloudy with a chance of flurries.
Morning Temperature: 5°F
Cloudy.
Afternoon Temperature: -4°F
Sunny.
Evening Temperature: -5°F
Clear. Windy at times.
Monday, January 26th, 2026
Overnight Temperature: 8°F
Clear. Windy at times.
Morning Temperature: 30°F
Sunny. Windy.
Afternoon Temperature: 30°F
Sunny with cloudy periods. Wind 20 to 30 mph.
Evening Temperature: 20°F
Clear. Windy at times.
Tuesday, January 27th, 2026
Overnight Temperature: 20°F
Clear.
Morning Temperature: 40°F
Cloudy. Windy at times.
Afternoon Temperature: 32°F
Cloudy.
Evening Temperature: 27°F
Cloudy.
Wednesday, January 28th, 2026
Overnight Temperature: 21°F
Clear.
Morning Temperature: 38°F
Cloudy. Windy.
Afternoon Temperature: 35°F
Sunny. Windy.
Evening Temperature: 24°F
Clear.
Thursday, January 29th, 2026
Overnight Temperature: 26°F
Clear. Windy at times.
Morning Temperature: 46°F
Sunny. Windy.
Afternoon Temperature: 28°F
Sunny.
Evening Temperature: 23°F
A mix of cloudy and clear skies.





 

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5:55 PM  21°F
 
 
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5:55 PM  23°F
 
 
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5:53 PM  18°F
 
 
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5:52 PM  12°F
 
 
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Gillette, WY 
5:53 PM  16°F
 
 
Douglas, WY 
5:53 PM  18°F
 

 
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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