Areas of locally dense fog will continue to affect portions of central South Dakota for the next couple of hours. The greatest coverage of dense fog is along and between US-83 and SD-45, including Gettysburg, Bowdle, and Eureka. If traveling this morning, reduce your speed and use low-beam headlights when encountering foggy areas.
Weather in Mound City, SD
Updated 2026-08-11 12:00 local time · ZIP codes 57646

Cloudy
Active alerts
Next hours
75°9% rain
81°7% rain
83°6% rain
85°4% rain
87°3% rain
88°2% rain
86°3% rain
85°3% rain
83°4% rain
79°4% rain
77°5% rain
76°6% 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 9%).
It feels like 78°F with winds near 8 mph.
75°F, 9% rain chance and 8 mph wind.
Visibility is around 10 mi; gusts may reach 14 mph.
Current temperature is 75°F, wind 8 mph, rain chance up to 9%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Mound City weather today
Cloudy and 75°F in Mound City, SD. Today's high is 88°F with a 9% rain chance. Winds are around 8 mph with gusts near 9 mph. Relative humidity is 83%, pressure is 29.91 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Mound City
Sunrise is at 06:35 AM and sunset is at 08:55 PM. Tomorrow's forecast calls for Sunny with a high near 94°F and a low near 67°F. The maximum rain chance is 62%.