National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 1:01 am MST Dec 23, 2025
 
Overnight

Overnight: Partly cloudy, with a low around 30. Calm wind becoming south around 5 mph.
Partly Cloudy
 Tuesday

Tuesday: Increasing clouds, with a high near 55. Southeast wind 7 to 13 mph, with gusts as high as 24 mph.
Increasing
Clouds
 Tuesday
Night
Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 39. South wind around 8 mph becoming southwest after midnight. Winds could gust as high as 17 mph.
Decreasing
Clouds
 Wednesday

Wednesday: Mostly sunny, with a high near 60. West wind around 7 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 38. South wind 6 to 11 mph, with gusts as high as 23 mph.
Mostly Cloudy
 Christmas
Day
Christmas Day: Mostly cloudy, then gradually becoming sunny, with a high near 70. South wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 32 mph.
Decreasing
Clouds
 Thursday
Night
Thursday Night: Mostly clear, with a low around 37. West wind 6 to 8 mph, with gusts as high as 16 mph.
Mostly Clear
 Friday

Friday: Mostly sunny, with a high near 62. Breezy, with a south wind 11 to 21 mph becoming west in the afternoon. Winds could gust as high as 38 mph.
Mostly Sunny
and Breezy
 Friday
Night
Friday Night: Mostly clear, with a low around 31.
Mostly Clear
Lo 30 °F Hi 55 °F Lo 39 °F Hi 60 °F Lo 38 °F Hi 70 °F Lo 37 °F Hi 62 °F Lo 31 °F

Hazardous Weather Outlook
 

Overnight
 
 Partly cloudy, with a low around 30. Calm wind becoming south around 5 mph.
Tuesday
 
 Increasing clouds, with a high near 55. Southeast wind 7 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
 
 Cloudy, then gradually becoming partly cloudy, with a low around 39. South wind around 8 mph becoming southwest after midnight. Winds could gust as high as 17 mph.
Wednesday
 
 Mostly sunny, with a high near 60. West wind around 7 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 38. South wind 6 to 11 mph, with gusts as high as 23 mph.
Christmas Day
 
 Mostly cloudy, then gradually becoming sunny, with a high near 70. South wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 32 mph.
Thursday Night
 
 Mostly clear, with a low around 37. West wind 6 to 8 mph, with gusts as high as 16 mph.
Friday
 
 Mostly sunny, with a high near 62. Breezy, with a south wind 11 to 21 mph becoming west in the afternoon. Winds could gust as high as 38 mph.
Friday Night
 
 Mostly clear, with a low around 31.
Saturday
 
 A slight chance of snow after 11am. Mostly sunny, with a high near 44. Breezy.
Saturday Night
 
 Mostly clear, with a low around 14.
Sunday
 
 Sunny, with a high near 36.
Sunday Night
 
 Partly cloudy, with a low around 18.
Monday
 
 Sunny, with a high near 48.

 

Forecast from NOAA-NWS for Rapid Valley SD.