Porcupine, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Porcupine, a community in Oglala Lakota County, South Dakota.
Today
71°F
Areas Of Smoke
Areas of smoke before 1pm. Partly sunny, with a high near 71. North wind around 5 mph.
7-day forecast for Porcupine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Areas Of Smoke | 5 mph N | 9% |
| Tonight | 52°F | Mostly Clear then Slight Chance Rain Showers | 5 to 9 mph SE | 20% |
| Wednesday | 82°F | Slight Chance Rain Showers then Sunny | 5 to 8 mph S | 20% |
| Wednesday Night | 58°F | Mostly Clear | 7 to 17 mph S | 2% |
| Thursday | 91°F | Sunny | 8 to 12 mph W | 3% |
| Thursday Night | 62°F | Clear | 8 to 12 mph SE | 3% |
| Friday | 96°F | Sunny | 7 to 10 mph NE | 1% |
| Friday Night | 66°F | Mostly Clear | 12 to 15 mph SE | 2% |
| Saturday | 98°F | Sunny | 12 to 15 mph NW | 2% |
| Saturday Night | 64°F | Mostly Clear | 7 to 14 mph E | 2% |
| Sunday | 97°F | Sunny | 7 to 16 mph SE | 8% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms | 9 to 17 mph E | 21% |
| Monday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 9 to 15 mph E | 15% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 9 to 16 mph E | 36% |
Forecast source: National Weather Service (api.weather.gov) for Porcupine (43.269, -102.335). Updated through the day.
Growing snapshot for Porcupine
Last spring frost
May 9
First fall frost
Oct 4
Growing season
147 days
Hardiness zone
5a
More local growing data for Porcupine: nearby ZIP 57756 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Manderson 3 Ne, Sd (2.5 mi from Porcupine). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.