Weather in Custer, SD
Updated 2026-09-26 07:45 local time · ZIP codes 57730
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
57°2% rain67°1% rain72°1% rain75°0% rain74°1% rain73°1% rain74°1% rain74°1% rain73°1% rain
70°3% rain64°3% rain
58°2% 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 9%).
It feels like 50°F with winds near 9 mph.
70°F, 3% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 19 mph.
Current temperature is 57°F, wind 9 mph, rain chance up to 9%.
UV index is 0.
Local weather characteristics in Custer
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Custer is part of the Midwest weather region. The forecast point is near 43.77°N latitude and 103.60°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.
Custer weather today
Sunny and 57°F in Custer, SD. Today's high is 75°F with a 3% rain chance. Winds are around 9 mph with gusts near 19 mph. Relative humidity is 50%, pressure is 29.79 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Custer
Sunrise is at 06:46 AM and sunset is at 06:45 PM. Tomorrow's forecast calls for Thundery outbreaks in nearby with a high near 70°F and a low near 54°F. The maximum rain chance is 57%.