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February 17th, 2026 :: 3:05 pm MST   

Local Weather Report for
Custer
South Dakota, United States

 Current Custer Weather Conditions Updated February 17th at 1:53 pm 
Mostly Sunny
Temperature:43°F Dew Point:19°F
Barometer:29.15 inHg Wind:N 47 Mph
Humidity:38.6% Visibility:0M
 
 Custer Weather Forecast Summary  
 
Today
Feb 17th
Wednesday
Feb 18th
Thursday
Feb 19th
Friday
Feb 20th
Saturday
Feb 21st
Cloudy Cloudy Flurries Cloudy Cloudy
52°F
41°F
17°F
14°F
-3°F
28°F
0°F
28°F
4°F
 
 Custer Detailed Weather Forecast  
 
Tuesday, February 17th, 2026
Afternoon Temperature: 43°F
Cloudy. Wind 25 to 40 mph.
Evening Temperature: 33°F
Cloudy. Windy.
Wednesday, February 18th, 2026
Overnight Temperature: 28°F
Clear.
Morning Temperature: 41°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 26°F
Cloudy. Windy.
Evening Temperature: 18°F
Cloudy with a chance of flurries. Windy.
Thursday, February 19th, 2026
Overnight Temperature: 14°F
Cloudy with flurries likely.
Morning Temperature: 14°F
Cloudy with flurries likely.
Afternoon Temperature: 8°F
Cloudy with a chance of flurries.
Evening Temperature: -1°F
Clear with cloudy periods with a slight chance of flurries.
Friday, February 20th, 2026
Overnight Temperature: 4°F
Cloudy.
Morning Temperature: 26°F
Cloudy. Windy at times.
Afternoon Temperature: 16°F
Cloudy.
Evening Temperature: 13°F
Cloudy.
Saturday, February 21st, 2026
Overnight Temperature: 16°F
Cloudy with a chance of flurries.
Morning Temperature: 28°F
Sunny with cloudy periods with a chance of flurries. Windy at times.
Afternoon Temperature: 16°F
Sunny.
Evening Temperature: 5°F
Mostly clear.
Sunday, February 22nd, 2026
Overnight Temperature: 6°F
A mix of cloudy and clear skies.
Morning Temperature: 19°F
Sunny with cloudy periods.
Afternoon Temperature: 12°F
Sunny.
Evening Temperature: 10°F
Clear.
Monday, February 23rd, 2026
Overnight Temperature: 18°F
Clear.
Morning Temperature: 42°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 39°F
Cloudy. Windy at times.
Evening Temperature: 39°F
Cloudy. Wind 20 to 30 mph.
Tuesday, February 24th, 2026
Overnight Temperature: 42°F
Cloudy. Windy.
Morning Temperature: 56°F
A mix of cloud and sun. Wind 25 to 40 mph.
Afternoon Temperature: 49°F
Cloudy. Wind 20 to 30 mph.
Evening Temperature: 36°F
Cloudy.
Wednesday, February 25th, 2026
Overnight Temperature: 32°F
Cloudy with a chance of flurries or showers.
Morning Temperature: 34°F
Cloudy with a chance of flurries or showers. Risk of freezing rain.
Afternoon Temperature: 35°F
Cloudy with a chance of flurries or showers. Risk of freezing rain.
Evening Temperature: 37°F
Cloudy with a chance of showers. Showers possibly mixed with wet flurries.





 

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Gillette, WY 
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1:53 PM  48°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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