Weather in Amherst, SD
Updated 2026-09-26 11:00 local time · ZIP codes 57421
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
60°29% rain61°30% rain
61°35% rain
63°49% rain
64°22% rain67°25% rain68°22% rain66°25% rain67°34% rain
65°29% rain
63°29% rain63°30% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
There is a moderate rain chance, peaking near 49%.
It feels like 56°F with winds near 11 mph.
68°F, 22% rain chance and 10 mph wind.
Visibility is around 6 mi; gusts may reach 22 mph.
Current temperature is 60°F, wind 11 mph, rain chance up to 49%.
UV index is 1.
Local weather characteristics in Amherst
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Amherst is part of the Midwest weather region. The forecast point is near 45.74°N latitude and 97.92°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.
Amherst weather today
Overcast and 60°F in Amherst, SD. Today's high is 68°F with a 84% rain chance. Winds are around 11 mph with gusts near 22 mph. Relative humidity is 89%, pressure is 29.89 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Amherst
Sunrise is at 07:23 AM and sunset is at 07:22 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 71°F and a low near 62°F. The maximum rain chance is 61%.