Lemmon, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lemmon, a city in Perkins County, South Dakota.
Overnight
44°F
Mostly Clear
Mostly clear, with a low around 44. West wind around 6 mph, with gusts as high as 17 mph.
7-day forecast for Lemmon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Mostly Clear | 6 mph W | 0% |
| Tuesday | 75°F | Sunny | 7 to 12 mph NW | 0% |
| Tuesday Night | 49°F | Mostly Clear | 1 to 9 mph W | 0% |
| Wednesday | 83°F | Mostly Sunny | 3 to 7 mph W | 0% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 7 mph S | 1% |
| Thursday | 90°F | Sunny | 3 to 9 mph W | 0% |
| Thursday Night | 58°F | Mostly Clear | 2 to 8 mph NE | 0% |
| Friday | 91°F | Sunny | 6 to 10 mph NE | 0% |
| Friday Night | 59°F | Mostly Clear | 9 mph E | 0% |
| Saturday | 94°F | Sunny | 8 to 13 mph NE | 1% |
| Saturday Night | 59°F | Mostly Clear | 7 to 12 mph NE | 3% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 16 mph E | 15% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 16 mph E | 28% |
| Monday | 87°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 to 17 mph E | 19% |
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 Aug 4, 2026.