Lemmon, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lemmon, a city in Perkins County, South Dakota.
This Afternoon
68°F
Cloudy
Cloudy. High near 68, with temperatures falling to around 66 in the afternoon. East wind around 6 mph.
7-day forecast for Lemmon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Cloudy | 6 mph E | 0% |
| Tonight | 53°F | Cloudy | 5 mph E | 4% |
| Saturday | 64°F | Chance Rain Showers | 3 to 10 mph E | 31% |
| Saturday Night | 51°F | Rain Showers Likely | 8 to 12 mph E | 74% |
| Sunday | 58°F | Rain Showers | 10 to 14 mph E | 78% |
| Sunday Night | 49°F | Rain Showers Likely | 6 to 10 mph E | 59% |
| Monday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 13 mph SE | 16% |
| Monday Night | 48°F | Mostly Cloudy | 12 mph SE | 7% |
| Tuesday | 67°F | Partly Sunny | 13 to 22 mph SE | 6% |
| Tuesday Night | 52°F | Mostly Cloudy | 12 to 18 mph SE | 10% |
| Wednesday | 74°F | Mostly Sunny | 10 to 16 mph SE | 12% |
| Wednesday Night | 53°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 9 mph SE | 21% |
| Thursday | 75°F | Sunny | 3 to 9 mph SE | 5% |
| Thursday Night | 54°F | Partly Cloudy | 6 to 9 mph SE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Lemmon (45.938, -102.160). Updated through the day.
Growing snapshot for Lemmon
Last spring frost
May 10
First fall frost
Sep 30
Growing season
142 days
Hardiness zone
4b
More local growing data for Lemmon: nearby ZIP 57638 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lemmon, Sd (6 mi from Lemmon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.