Weather in Erwin, SD
Updated 2026-09-26 08:45 local time · ZIP codes 57233
Patchy rain nearby
No government weather alerts were returned for this location at the latest update.
Next hours
54°40% rain55°36% rain
55°34% rain56°38% rain
57°65% rain58°39% rain59°47% rain58°35% rain59°37% rain58°34% rain58°34% rain
59°43% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 65% over the next 12 hours.
It feels like 48°F with winds near 14 mph.
58°F, 34% rain chance and 10 mph wind.
Visibility is around 6 mi; gusts may reach 28 mph.
Current temperature is 54°F, wind 14 mph, rain chance up to 65%.
UV index is 0.
Local weather characteristics in Erwin
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Erwin is part of the Midwest weather region. The forecast point is near 44.49°N latitude and 97.44°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.
Erwin weather today
Patchy rain nearby and 54°F in Erwin, SD. Today's high is 61°F with a 88% rain chance. Winds are around 14 mph with gusts near 28 mph. Relative humidity is 98%, pressure is 29.93 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Erwin
Sunrise is at 07:21 AM and sunset is at 07:20 PM. Tomorrow's forecast calls for Fog with a high near 74°F and a low near 60°F. The maximum rain chance is 21%.