Weather in Mount Vernon, SD
Updated 2026-08-11 12:00 local time · ZIP codes 57363
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
84°7% rain
87°6% rain88°5% rain89°4% rain89°4% rain90°3% rain89°3% rain87°3% rain84°4% rain
80°7% rain78°8% rain77°10% 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 10%).
It feels like 91°F with winds near 9 mph.
84°F, 4% rain chance and 8 mph wind.
Visibility is around 10 mi; gusts may reach 19 mph.
Current temperature is 84°F, wind 9 mph, rain chance up to 10%.
UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.
Mount Vernon weather today
Cloudy and 84°F in Mount Vernon, SD. Today's high is 90°F with a 10% rain chance. Winds are around 9 mph with gusts near 11 mph. Relative humidity is 70%, pressure is 29.87 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Mount Vernon
Sunrise is at 06:33 AM and sunset is at 08:43 PM. Tomorrow's forecast calls for Sunny with a high near 90°F and a low near 68°F. The maximum rain chance is 68%.