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

Overnight: A chance of snow before 2am, then a chance of rain and snow between 2am and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 30. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Chance
Rain/Snow
 Friday

Friday: A 40 percent chance of snow before 2pm. Mostly cloudy, with a temperature falling to around 28 by 5pm. Wind chill values as low as 19. Northwest wind 10 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Chance Snow

 Friday
Night
Friday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a steady temperature around 27. Wind chill values as low as 17. Southwest wind 5 to 7 mph becoming light and variable after midnight.
Slight Chance
Snow
 Saturday

Saturday: Snow likely. Cloudy, with a high near 35. Wind chill values as low as 17. Northwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Snow Likely

 Saturday
Night
Saturday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 17. Northwest wind 5 to 7 mph becoming light and variable. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Snow Likely

 Sunday

Sunday: A 40 percent chance of snow before 11am. Partly sunny, with a high near 39. West wind 9 to 14 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Chance Snow
then Mostly
Sunny
 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 28. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Mostly Cloudy

 Monday

Monday: Mostly sunny, with a high near 43. West wind 15 to 18 mph, with gusts as high as 30 mph.
Mostly Sunny

 Monday
Night
Monday Night: A slight chance of rain and snow between 11pm and 1am, then a slight chance of rain after 1am. Mostly cloudy, with a low around 34.
Slight Chance
Rain/Snow
Lo 30 °F Hi 32 °F⇓ Lo 27 °F Hi 35 °F Lo 17 °F Hi 39 °F Lo 28 °F Hi 43 °F Lo 34 °F

 

Overnight
 
 A chance of snow before 2am, then a chance of rain and snow between 2am and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 30. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Friday
 
 A 40 percent chance of snow before 2pm. Mostly cloudy, with a temperature falling to around 28 by 5pm. Wind chill values as low as 19. Northwest wind 10 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Friday Night
 
 A 20 percent chance of snow after 11pm. Mostly cloudy, with a steady temperature around 27. Wind chill values as low as 17. Southwest wind 5 to 7 mph becoming light and variable after midnight.
Saturday
 
 Snow likely. Cloudy, with a high near 35. Wind chill values as low as 17. Northwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday Night
 
 Snow likely, mainly after 11pm. Mostly cloudy, with a low around 17. Northwest wind 5 to 7 mph becoming light and variable. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
 
 A 40 percent chance of snow before 11am. Partly sunny, with a high near 39. West wind 9 to 14 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Sunday Night
 
 Mostly cloudy, with a low around 28. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Monday
 
 Mostly sunny, with a high near 43. West wind 15 to 18 mph, with gusts as high as 30 mph.
Monday Night
 
 A slight chance of rain and snow between 11pm and 1am, then a slight chance of rain after 1am. Mostly cloudy, with a low around 34.
Tuesday
 
 A chance of rain. Mostly cloudy, with a high near 50. Breezy.
Tuesday Night
 
 Rain and snow likely. Mostly cloudy, with a low around 28. Breezy.
Wednesday
 
 A chance of snow. Partly sunny, with a high near 38.
Wednesday Night
 
 Snow likely. Mostly cloudy, with a low around 28.
Thursday
 
 A chance of snow. Mostly cloudy, with a high near 39.

 

Forecast from NOAA-NWS for Spearfish SD.