Porcupine, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Porcupine, a community in Oglala Lakota County, South Dakota.
Overnight
29°F
Mostly Clear
Mostly clear. Low around 29, with temperatures rising to around 31 overnight. Northwest wind around 7 mph.
7-day forecast for Porcupine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Mostly Clear | 7 mph NW | 0% |
| Wednesday | 50°F | Mostly Sunny | 7 to 13 mph NW | 0% |
| Wednesday Night | 32°F | Mostly Cloudy | 8 mph NW | 1% |
| Thursday | 52°F | Mostly Sunny | 7 mph NW | 0% |
| Thursday Night | 31°F | Partly Cloudy | 7 mph SE | 0% |
| Friday | 54°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Friday Night | 33°F | Mostly Clear | 2 to 9 mph SW | 0% |
| Saturday | 59°F | Sunny | 8 to 13 mph W | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Sunday | 65°F | Sunny | 10 to 17 mph SW | 0% |
| Sunday Night | 41°F | Mostly Clear | 9 to 15 mph SW | 0% |
| Monday | 61°F | Sunny | 7 to 10 mph NW | 0% |
| Monday Night | 37°F | Partly Cloudy | 6 to 9 mph E | 0% |
| Tuesday | 61°F | Mostly Sunny | 7 to 14 mph S | 0% |
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 Nov 4, 2026.