Weather in Porcupine, SD
Updated 2026-09-26 10:00 local time · ZIP codes 57772
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
70°3% rain73°2% rain75°1% rain76°1% rain77°1% rain78°1% rain78°0% rain77°1% rain73°1% rain
69°1% rain68°1% rain67°1% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 3%).
It feels like 67°F with winds near 8 mph.
69°F, 1% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 16 mph.
Current temperature is 70°F, wind 8 mph, rain chance up to 3%.
UV index is 3.
Local weather characteristics in Porcupine
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Porcupine is part of the Midwest weather region. The forecast point is near 43.24°N latitude and 102.33°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Porcupine weather today
Sunny and 70°F in Porcupine, SD. Today's high is 78°F with a 4% rain chance. Winds are around 8 mph with gusts near 11 mph. Relative humidity is 54%, pressure is 29.79 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Porcupine
Sunrise is at 06:41 AM and sunset is at 06:40 PM. Tomorrow's forecast calls for Overcast with a high near 83°F and a low near 60°F. The maximum rain chance is 7%.