National Weather Service Forecast for: Spearfish SD
Issued by: National Weather Service Rapid City, SD
Updated: 12:27 pm MDT Jul 28, 2026
 
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Sunny, with a high near 94. East wind around 10 mph, with gusts as high as 17 mph.
Chance
T-storms

 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Slight Chance
T-storms then
Partly Cloudy
 Wednesday

Wednesday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Sunny then
Chance
T-storms
 Wednesday
Night
Wednesday Night: Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 67. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
T-storms
Likely then
Chance
T-storms
 Thursday

Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Cloudy through mid morning, then gradual clearing, with a high near 89. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Slight Chance
Showers then
Showers
Likely
 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 63. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Chance
Showers then
Mostly Clear
 Friday

Friday: A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92.
Sunny then
Chance
T-storms
 Friday
Night
Friday Night: Mostly clear, with a low around 65.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 97.
Sunny
Hi 94 °F Lo 69 °F Hi 96 °F Lo 67 °F Hi 89 °F Lo 63 °F Hi 92 °F Lo 65 °F Hi 97 °F

 

This Afternoon
 
 A 30 percent chance of showers and thunderstorms, mainly before 4pm. Sunny, with a high near 94. East wind around 10 mph, with gusts as high as 17 mph.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Wednesday
 
 A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
 
 Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 67. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Thursday
 
 A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Cloudy through mid morning, then gradual clearing, with a high near 89. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 63. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Friday
 
 A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92.
Friday Night
 
 Mostly clear, with a low around 65.
Saturday
 
 Sunny, with a high near 97.
Saturday Night
 
 Clear, with a low around 74.
Sunday
 
 Sunny and hot, with a high near 101.
Sunday Night
 
 Mostly clear, with a low around 68.
Monday
 
 Sunny, with a high near 87.

 

Forecast from NOAA-NWS for Spearfish SD.