Weather in Lebanon, SD
Updated 2026-09-26 11:00 local time · ZIP codes 57455
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
59°26% rain62°22% rain63°20% rain64°20% rain66°17% rain68°15% rain
68°11% rain
68°6% rain
71°19% rain
71°11% rain70°14% rain
69°19% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 26%).
It feels like 54°F with winds near 11 mph.
68°F, 6% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 59°F, wind 11 mph, rain chance up to 26%.
UV index is 1.
Local weather characteristics in Lebanon
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Lebanon is part of the Midwest weather region. The forecast point is near 44.98°N latitude and 99.72°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.
Lebanon weather today
Overcast and 59°F in Lebanon, SD. Today's high is 71°F with a 41% rain chance. Winds are around 11 mph with gusts near 18 mph. Relative humidity is 87%, pressure is 29.84 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Lebanon
Sunrise is at 07:30 AM and sunset is at 07:29 PM. Tomorrow's forecast calls for Mist with a high near 68°F and a low near 58°F. The maximum rain chance is 38%.