National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 7:36 pm MST Dec 17, 2025
 
Tonight

Tonight: A 50 percent chance of snow before 9pm. Partly cloudy, with a low around 22. Wind chill values as low as 2. Very windy, with a west wind 32 to 37 mph increasing to 39 to 44 mph after midnight. Winds could gust as high as 70 mph. Little or no snow accumulation expected.
Chance Snow
and Windy
then Partly
Cloudy and
Very Windy
 Thursday

Thursday: Mostly sunny, with a high near 35. Wind chill values as low as 2. Very windy, with a northwest wind 34 to 44 mph decreasing to 15 to 25 mph. Winds could gust as high as 65 mph.
Mostly Sunny
and Very
Windy

 Thursday
Night
Thursday Night: Mostly cloudy, with a temperature falling to near 23 by 8pm, then rising to around 33 during the remainder of the night. Wind chill values as low as 13. South wind 6 to 13 mph, with gusts as high as 24 mph.
Mostly Cloudy


 Friday

Friday: Mostly sunny, with a high near 61. Breezy, with a west wind 16 to 24 mph, with gusts as high as 40 mph.
Mostly Sunny
and Breezy

 Friday
Night
Friday Night: A slight chance of rain before 9pm, then a slight chance of rain and snow between 9pm and 11pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 27. Northwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Chance
Rain/Snow
then Chance
Snow
 Saturday

Saturday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 43. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Slight Chance
Snow then
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 24. West wind around 6 mph.
Partly Cloudy


 Sunday

Sunday: Partly sunny, with a high near 49. South wind 7 to 9 mph, with gusts as high as 18 mph.
Partly Sunny


 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 32.
Mostly Cloudy
Lo 22 °F Hi 35 °F Lo 23 °F⇑ Hi 61 °F Lo 27 °F Hi 43 °F Lo 24 °F Hi 49 °F Lo 32 °F

High Wind Warning
Hazardous Weather Outlook
 

Tonight
 
 A 50 percent chance of snow before 9pm. Partly cloudy, with a low around 22. Wind chill values as low as 2. Very windy, with a west wind 32 to 37 mph increasing to 39 to 44 mph after midnight. Winds could gust as high as 70 mph. Little or no snow accumulation expected.
Thursday
 
 Mostly sunny, with a high near 35. Wind chill values as low as 2. Very windy, with a northwest wind 34 to 44 mph decreasing to 15 to 25 mph. Winds could gust as high as 65 mph.
Thursday Night
 
 Mostly cloudy, with a temperature falling to near 23 by 8pm, then rising to around 33 during the remainder of the night. Wind chill values as low as 13. South wind 6 to 13 mph, with gusts as high as 24 mph.
Friday
 
 Mostly sunny, with a high near 61. Breezy, with a west wind 16 to 24 mph, with gusts as high as 40 mph.
Friday Night
 
 A slight chance of rain before 9pm, then a slight chance of rain and snow between 9pm and 11pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 27. Northwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Saturday
 
 A 20 percent chance of snow before 11am. Mostly sunny, with a high near 43. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Saturday Night
 
 Partly cloudy, with a low around 24. West wind around 6 mph.
Sunday
 
 Partly sunny, with a high near 49. South wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday Night
 
 Mostly cloudy, with a low around 32.
Monday
 
 Mostly sunny, with a high near 61.
Monday Night
 
 Mostly cloudy, with a low around 29.
Tuesday
 
 Mostly sunny, with a high near 49.
Tuesday Night
 
 Partly cloudy, with a low around 32.
Wednesday
 
 Mostly sunny, with a high near 59.

 

Forecast from NOAA-NWS for Rapid Valley SD.