Weather in Summit, SD
Updated 2026-08-11 10:15 local time · ZIP codes 57266
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
69°15% rain72°12% rain74°11% rain
77°11% rain78°11% rain79°10% rain81°7% rain81°6% rain80°6% rain79°6% rain77°8% rain
74°8% 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 72°F with winds near 7 mph.
77°F, 8% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 14 mph.
Current temperature is 69°F, wind 7 mph, rain chance up to 15%.
UV index is 3.
Summit weather today
Sunny and 69°F in Summit, SD. Today's high is 81°F with a 12% rain chance. Winds are around 7 mph with gusts near 8 mph. Relative humidity is 91%, pressure is 29.90 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Summit
Sunrise is at 06:24 AM and sunset is at 08:42 PM. Tomorrow's forecast calls for Sunny with a high near 90°F and a low near 63°F. The maximum rain chance is 64%.