National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 1:06 am MST Dec 5, 2025
 
Overnight

Overnight: A 10 percent chance of snow after 5am. Partly cloudy, with a steady temperature around 36. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.
Slight Chance
Snow

 Friday

Friday: A 20 percent chance of snow before 8am. Partly sunny, with a temperature rising to near 38 by noon, then falling to around 28 during the remainder of the day. Wind chill values as low as 17. Breezy, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph.
Breezy.
Slight Chance
Snow then
Partly Sunny
 Friday
Night
Friday Night: Mostly cloudy, with a low around 18. Wind chill values as low as 10. West wind 5 to 8 mph becoming southeast after midnight. Winds could gust as high as 16 mph.
Mostly Cloudy

 Saturday

Saturday: A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 36. Wind chill values as low as 15. North wind 6 to 15 mph, with gusts as high as 29 mph. Little or no snow accumulation expected.
Chance Snow

 Saturday
Night
Saturday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 13. North wind 5 to 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Slight Chance
Snow

 Sunday

Sunday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 42. South wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Slight Chance
Snow then
Mostly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 23. Southwest wind around 8 mph, with gusts as high as 17 mph.
Partly Cloudy

 Monday

Monday: Sunny, with a high near 49. Northwest wind 10 to 17 mph, with gusts as high as 34 mph.
Sunny

 Monday
Night
Monday Night: Mostly cloudy, with a low around 29.
Mostly Cloudy
Lo 36 °F Hi 38 °F⇓ Lo 18 °F Hi 36 °F Lo 13 °F Hi 42 °F Lo 23 °F Hi 49 °F Lo 29 °F

 

Overnight
 
 A 10 percent chance of snow after 5am. Partly cloudy, with a steady temperature around 36. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.
Friday
 
 A 20 percent chance of snow before 8am. Partly sunny, with a temperature rising to near 38 by noon, then falling to around 28 during the remainder of the day. Wind chill values as low as 17. Breezy, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph.
Friday Night
 
 Mostly cloudy, with a low around 18. Wind chill values as low as 10. West wind 5 to 8 mph becoming southeast after midnight. Winds could gust as high as 16 mph.
Saturday
 
 A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 36. Wind chill values as low as 15. North wind 6 to 15 mph, with gusts as high as 29 mph. Little or no snow accumulation expected.
Saturday Night
 
 A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 13. North wind 5 to 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Sunday
 
 A 20 percent chance of snow before 11am. Mostly sunny, with a high near 42. South wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
 
 Partly cloudy, with a low around 23. Southwest wind around 8 mph, with gusts as high as 17 mph.
Monday
 
 Sunny, with a high near 49. Northwest wind 10 to 17 mph, with gusts as high as 34 mph.
Monday Night
 
 Mostly cloudy, with a low around 29.
Tuesday
 
 A chance of rain after 11am. Partly sunny, with a high near 56. Breezy.
Tuesday Night
 
 A chance of rain and snow. Mostly cloudy, with a low around 28. Blustery.
Wednesday
 
 A chance of rain and snow. Mostly sunny, with a high near 42.
Wednesday Night
 
 A chance of rain and snow. Mostly cloudy, with a low around 24.
Thursday
 
 A chance of rain and snow. Partly sunny, with a high near 42.

 

Forecast from NOAA-NWS for Rapid Valley SD.