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
45°F
Mostly Sunny
Mostly sunny. High near 45, with temperatures falling to around 38 in the afternoon. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
7-day forecast for Lemmon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Mostly Sunny | 6 to 14 mph NW | 0% |
| Tonight | 27°F | Partly Cloudy | 7 mph NW | 0% |
| Wednesday | 52°F | Partly Sunny | 8 to 13 mph NW | 0% |
| Wednesday Night | 27°F | Mostly Cloudy | 5 to 8 mph NW | 0% |
| Thursday | 50°F | Sunny | 3 mph NE | 0% |
| Thursday Night | 25°F | Partly Cloudy | 3 mph S | 0% |
| Friday | 54°F | Mostly Sunny | 2 to 6 mph W | 0% |
| Friday Night | 31°F | Mostly Clear | 2 to 9 mph W | 2% |
| Saturday | 57°F | Sunny | 8 to 21 mph W | 2% |
| Saturday Night | 30°F | Mostly Clear | 3 to 7 mph W | 0% |
| Sunday | 61°F | Sunny | 3 to 10 mph SW | 0% |
| Sunday Night | 38°F | Mostly Clear | 7 to 14 mph W | 0% |
| Monday | 58°F | Sunny | 5 to 17 mph NW | 0% |
| Monday Night | 32°F | Partly Cloudy | 5 mph W | 1% |
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 Nov 3, 2026.