National Weather Service Forecast for: Blackhawk SD
Issued by: National Weather Service Rapid City, SD
Updated: 10:48 am MDT Mar 19, 2026
 
Today

Today: Mostly sunny, with a high near 82. Northwest wind 8 to 13 mph, with gusts as high as 25 mph.
Mostly Sunny


 Tonight

Tonight: Partly cloudy, with a low around 51. West wind around 7 mph, with gusts as high as 17 mph.
Partly Cloudy


 Friday

Friday: Sunny, with a high near 82. Northwest wind 6 to 10 mph, with gusts as high as 25 mph.
Sunny


 Friday
Night
Friday Night: Mostly clear, with a low around 54. Northwest wind around 7 mph becoming southwest after midnight. Winds could gust as high as 16 mph.
Mostly Clear


 Saturday

Saturday: Sunny, with a high near 88. Southwest wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph.
Sunny


 Saturday
Night
Saturday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 44. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph.
Breezy.
Partly Cloudy
then Slight
Chance
Showers
 Sunday

Sunday: Mostly sunny, with a high near 59. North wind 11 to 17 mph, with gusts as high as 25 mph.
Mostly Sunny


 Sunday
Night
Sunday Night: Partly cloudy, with a low around 35. North wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Partly Cloudy


 Monday

Monday: Partly sunny, with a high near 65.
Partly Sunny
Hi 82 °F Lo 51 °F Hi 82 °F Lo 54 °F Hi 88 °F Lo 44 °F Hi 59 °F Lo 35 °F Hi 65 °F

Hazardous Weather Outlook
Red Flag Warning
 

Today
 
 Mostly sunny, with a high near 82. Northwest wind 8 to 13 mph, with gusts as high as 25 mph.
Tonight
 
 Partly cloudy, with a low around 51. West wind around 7 mph, with gusts as high as 17 mph.
Friday
 
 Sunny, with a high near 82. Northwest wind 6 to 10 mph, with gusts as high as 25 mph.
Friday Night
 
 Mostly clear, with a low around 54. Northwest wind around 7 mph becoming southwest after midnight. Winds could gust as high as 16 mph.
Saturday
 
 Sunny, with a high near 88. Southwest wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
 
 A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 44. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph.
Sunday
 
 Mostly sunny, with a high near 59. North wind 11 to 17 mph, with gusts as high as 25 mph.
Sunday Night
 
 Partly cloudy, with a low around 35. North wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Monday
 
 Partly sunny, with a high near 65.
Monday Night
 
 Mostly cloudy, with a low around 38.
Tuesday
 
 Partly sunny, with a high near 63.
Tuesday Night
 
 Mostly cloudy, with a low around 43.
Wednesday
 
 Partly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Blackhawk SD.