Weather in Long Valley, SD
Updated 2026-08-11 10:00 local time · ZIP codes 57547
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
77°5% rain
80°4% rain83°3% rain86°3% rain87°2% rain89°2% rain90°2% rain90°1% rain90°1% rain89°2% rain
87°2% rain83°3% 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 5%).
It feels like 80°F with winds near 11 mph.
77°F, 5% rain chance and 11 mph wind.
Visibility is around 10 mi; gusts may reach 59 mph.
Current temperature is 77°F, wind 11 mph, rain chance up to 5%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Long Valley weather today
Cloudy and 77°F in Long Valley, SD. Today's high is 90°F with a 5% rain chance. Winds are around 11 mph with gusts near 12 mph. Relative humidity is 79%, pressure is 29.91 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Long Valley
Sunrise is at 05:46 AM and sunset is at 07:55 PM. Tomorrow's forecast calls for Partly Cloudy with a high near 90°F and a low near 65°F. The maximum rain chance is 57%.