Weather in Lemmon, SD
Updated 2026-09-26 09:00 local time · ZIP codes 57638
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
54°27% rain56°24% rain
58°18% rain
64°5% rain67°1% rain68°1% rain69°1% rain69°0% rain67°0% rain69°0% rain
72°1% rain71°1% 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 27%).
It feels like 50°F with winds near 9 mph.
69°F, 0% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 13 mph.
Current temperature is 54°F, wind 9 mph, rain chance up to 27%.
UV index is 1.
Local weather characteristics in Lemmon
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Lemmon is part of the Midwest weather region. The forecast point is near 45.94°N latitude and 102.16°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.
Lemmon weather today
Overcast and 54°F in Lemmon, SD. Today's high is 72°F with a 7% rain chance. Winds are around 9 mph with gusts near 13 mph. Relative humidity is 85%, pressure is 29.81 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Lemmon
Sunrise is at 06:40 AM and sunset is at 06:39 PM. Tomorrow's forecast calls for Sunny with a high near 65°F and a low near 52°F. The maximum rain chance is 57%.