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May 14th, 2026 :: 12:40 am MDT   

Local Weather Report for
Custer
South Dakota, United States

 Current Custer Weather Conditions Updated May 13th at 11:53 pm 
Mostly Clear
Temperature:68°F Dew Point:37°F
Barometer:29.83 inHg Wind:N 19 Mph
Humidity:32.4% Visibility:0M
 
 Custer Weather Forecast Summary  
 
Today
May 14th
Friday
May 15th
Saturday
May 16th
Sunday
May 17th
Monday
May 18th
Mostly Sunny Sunny Mostly Sunny Thundershowers Mix of rain and snow
78°F
76°F
50°F
73°F
46°F
72°F
52°F
48°F
38°F
 
 Custer Detailed Weather Forecast  
 
Thursday, May 14th, 2026
Overnight Temperature: 66°F
Mostly clear. Windy at times.
Morning Temperature: 66°F
Sunny. Windy at times.
Afternoon Temperature: 75°F
Sunny. Windy.
Evening Temperature: 68°F
Mostly clear. Windy.
Friday, May 15th, 2026
Overnight Temperature: 53°F
Clear. Windy at times.
Morning Temperature: 57°F
Sunny. Windy at times.
Afternoon Temperature: 73°F
Sunny. Windy.
Evening Temperature: 68°F
A mix of clear and cloudy skies. Windy at times.
Saturday, May 16th, 2026
Overnight Temperature: 50°F
Mostly clear.
Morning Temperature: 53°F
Sunny. Windy at times.
Afternoon Temperature: 70°F
Mostly sunny. Windy at times.
Evening Temperature: 66°F
Mostly cloudy with a slight chance of showers. Windy at times.
Sunday, May 17th, 2026
Overnight Temperature: 53°F
A mix of cloudy and clear skies with showers likely.
Morning Temperature: 57°F
A mix of cloud and sun. Slight chance of a thunderstorm.
Afternoon Temperature: 71°F
A mix of sun and cloud with a slight chance of showers or thundershowers. Windy.
Evening Temperature: 53°F
Cloudy with showers likely.
Monday, May 18th, 2026
Overnight Temperature: 47°F
Cloudy with a chance of showers. Windy at times.
Morning Temperature: 40°F
Cloudy with a few showers. Showers possibly mixed with wet flurries. Windy at times.
Afternoon Temperature: 40°F
Cloudy with a few showers. Windy.
Evening Temperature: 42°F
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Tuesday, May 19th, 2026
Overnight Temperature: 34°F
Clear.
Morning Temperature: 42°F
Mostly sunny. Windy at times.
Afternoon Temperature: 60°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 55°F
Mostly clear. Windy at times.
Wednesday, May 20th, 2026
Overnight Temperature: 48°F
Mostly clear.
Morning Temperature: 54°F
A mix of sun and cloud. Windy at times.
Afternoon Temperature: 62°F
A mix of cloud and sun. Wind 20 to 30 mph.
Evening Temperature: 54°F
Clear. Windy.
Thursday, May 21st, 2026
Overnight Temperature: 44°F
Clear.
Morning Temperature: 49°F
Sunny. Windy at times.
Afternoon Temperature: 69°F
Sunny. Windy at times.
Evening Temperature: 69°F
Mostly clear. Windy at times.





 

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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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