Weather in Saint Charles, SD
Updated 2026-09-26 12:45 local time · ZIP codes 57571
Patchy rain nearby
No government weather alerts were returned for this location at the latest update.
Next hours
87°20% rain
86°29% rain
86°16% rain86°36% rain85°37% rain
83°20% rain81°17% rain
81°36% rain81°37% rain80°68% rain80°69% rain
80°52% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 69% over the next 12 hours.
It feels like 96°F with winds near 12 mph.
81°F, 17% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 14 mph.
Current temperature is 87°F, wind 12 mph, rain chance up to 69%.
UV index is 9. Use shade, sunscreen, a hat and sunglasses.
Local weather characteristics in Saint Charles
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Saint Charles is part of the Midwest weather region. The forecast point is near 15.93°N latitude and 61.30°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.
Saint Charles weather today
Patchy rain nearby and 87°F in Saint Charles, SD. Today's high is 87°F with a 80% rain chance. Winds are around 12 mph with gusts near 14 mph. Relative humidity is 64%, pressure is 29.95 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Saint Charles
Sunrise is at 05:54 AM and sunset is at 05:58 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 88°F and a low near 79°F. The maximum rain chance is 60%.