Lemmon, in South Dakota, United States, is home to roughly 1,200 people in the Mountain Time Zone at 45.9°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Lemmon recorded a mean annual temperature of 45°F, ranging from -29°F lows in February to 98°F highs in July, with about 28 inches of precipitation across the year.
View historical weather for Lemmon · More cities in South Dakota