Weather in Amherst, SD
Updated 2026-08-11 10:15 local time · ZIP codes 57421
Partly Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
72°15% rain
77°10% rain80°7% rain82°7% rain83°5% rain85°4% rain85°4% rain86°3% rain85°3% rain83°4% rain80°5% rain
77°14% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 15%).
It feels like 73°F with winds near 8 mph.
80°F, 5% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 20 mph.
Current temperature is 72°F, wind 8 mph, rain chance up to 15%.
UV index is 2.
Amherst weather today
Partly Cloudy and 72°F in Amherst, SD. Today's high is 86°F with a 10% rain chance. Winds are around 8 mph with gusts near 9 mph. Relative humidity is 84%, pressure is 29.88 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Amherst
Sunrise is at 06:27 AM and sunset is at 08:46 PM. Tomorrow's forecast calls for Sunny with a high near 96°F and a low near 64°F. The maximum rain chance is 63%.