Weather in Sinai, SD
Updated 2026-08-11 12:00 local time · ZIP codes 57061
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
79°10% rain
81°10% rain
84°6% rain85°5% rain85°4% rain85°4% rain84°4% rain82°4% rain79°6% rain
75°6% rain73°9% rain72°11% 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 11%).
It feels like 83°F with winds near 10 mph.
79°F, 10% rain chance and 10 mph wind.
Visibility is around 10 mi; gusts may reach 25 mph.
Current temperature is 79°F, wind 10 mph, rain chance up to 11%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Sinai weather today
Cloudy and 79°F in Sinai, SD. Today's high is 85°F with a 77% rain chance. Winds are around 10 mph with gusts near 11 mph. Relative humidity is 79%, pressure is 29.93 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Sinai
Sunrise is at 06:27 AM and sunset is at 08:39 PM. Tomorrow's forecast calls for Sunny with a high near 92°F and a low near 64°F. The maximum rain chance is 57%.