North Spearfish, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Spearfish, a community in Lawrence County, South Dakota.
Overnight
45°F
Areas Of Smoke
Areas of smoke. Mostly clear, with a low around 45. West wind around 1 mph.
7-day forecast for North Spearfish
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Areas Of Smoke | 1 mph W | 1% |
| Tuesday | 74°F | Areas Of Smoke then Sunny | 1 to 7 mph NW | 1% |
| Tuesday Night | 53°F | Mostly Clear then Slight Chance Rain Showers | 6 mph S | 17% |
| Wednesday | 82°F | Sunny | 1 to 6 mph N | 5% |
| Wednesday Night | 57°F | Mostly Clear | 6 mph SE | 1% |
| Thursday | 90°F | Sunny | 1 to 8 mph NW | 1% |
| Thursday Night | 62°F | Mostly Clear | 7 mph SW | 0% |
| Friday | 94°F | Sunny | 2 to 10 mph N | 1% |
| Friday Night | 67°F | Mostly Clear | 6 to 12 mph S | 0% |
| Saturday | 95°F | Sunny | 3 to 13 mph NW | 2% |
| Saturday Night | 64°F | Mostly Clear | 3 to 13 mph SE | 4% |
| Sunday | 95°F | Mostly Sunny | 3 to 15 mph SE | 10% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms | 2 to 15 mph SE | 16% |
| Monday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 17 mph E | 17% |
Forecast source: National Weather Service (api.weather.gov) for North Spearfish (44.511, -103.904). Updated through the day.
Growing snapshot for North Spearfish
Last spring frost
May 12
First fall frost
Oct 2
Growing season
143 days
More local growing data for North Spearfish: nearby ZIP 57799 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Belle Fourche
Boulder Canyon
Central City
Crook City
Deadwood
Lead
Mountain Plains
Spearfish
St. Onge
Whitewood
Climate data from the nearest NOAA station, Spearfish, Sd (0.1 mi from North Spearfish). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.