National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 12:31 pm MDT Oct 6, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 85. North wind around 14 mph, with gusts as high as 30 mph.
Sunny
 Tonight

Tonight: Clear, with a low around 48. North wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 23 mph.
Clear
 Wednesday

Wednesday: Sunny, with a high near 78. West wind 5 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 47. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Partly Cloudy
 Thursday

Thursday: Sunny, with a high near 75. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 51. East wind around 6 mph becoming southwest in the evening.
Mostly Clear
 Friday

Friday: Sunny, with a high near 87.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 60.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 86.
Sunny
Hi 85 °F Lo 48 °F Hi 78 °F Lo 47 °F Hi 75 °F Lo 51 °F Hi 87 °F Lo 60 °F Hi 86 °F

 

This Afternoon
 
 Sunny, with a high near 85. North wind around 14 mph, with gusts as high as 30 mph.
Tonight
 
 Clear, with a low around 48. North wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 23 mph.
Wednesday
 
 Sunny, with a high near 78. West wind 5 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
 
 Partly cloudy, with a low around 47. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Thursday
 
 Sunny, with a high near 75. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Thursday Night
 
 Mostly clear, with a low around 51. East wind around 6 mph becoming southwest in the evening.
Friday
 
 Sunny, with a high near 87.
Friday Night
 
 Mostly clear, with a low around 60.
Saturday
 
 Sunny, with a high near 86.
Saturday Night
 
 Partly cloudy, with a low around 48.
Sunday
 
 A slight chance of rain. Partly sunny, with a high near 60.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 42.
Columbus Day
 
 A chance of rain. Mostly cloudy, with a high near 53.

 

Forecast from NOAA-NWS for Rapid Valley SD.