Weather in Long Lake, SD
Updated 2026-09-26 11:00 local time · ZIP codes 57457
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
56°33% rain
57°34% rain59°30% rain60°27% rain61°26% rain63°24% rain63°24% rain62°24% rain61°24% rain
68°21% rain67°23% rain67°23% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
There is a moderate rain chance, peaking near 34%.
It feels like 52°F with winds near 10 mph.
68°F, 21% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 22 mph.
Current temperature is 56°F, wind 10 mph, rain chance up to 34%.
UV index is 1.
Local weather characteristics in Long Lake
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Long Lake is part of the Midwest weather region. The forecast point is near 45.86°N latitude and 99.20°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Long Lake weather today
Overcast and 56°F in Long Lake, SD. Today's high is 68°F with a 70% rain chance. Winds are around 10 mph with gusts near 22 mph. Relative humidity is 96%, pressure is 29.86 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Long Lake
Sunrise is at 07:28 AM and sunset is at 07:27 PM. Tomorrow's forecast calls for Overcast with a high near 68°F and a low near 59°F. The maximum rain chance is 38%.