Lennox, SD Weather & Growing Conditions
Tonight
39°F
Rain Showers
Rain showers. Cloudy. Low around 39, with temperatures rising to around 42 overnight. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Rain Showers | 15 to 20 mph NW | 100% |
| Wednesday | 46°F | Rain Showers | 15 to 20 mph NW | 77% |
| Wednesday Night | 37°F | Rain Showers Likely | 10 to 15 mph NW | 60% |
| Thursday | 48°F | Partly Sunny | 10 to 15 mph NNW | 11% |
| Thursday Night | 32°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 48°F | Partly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 31°F | Mostly Cloudy | 0 to 5 mph S | 1% |
| Saturday | 56°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph WNW | 5% |
| Sunday | 58°F | Sunny | 5 to 10 mph WSW | 2% |
| Sunday Night | 38°F | Mostly Clear | 5 mph S | 1% |
| Monday | 61°F | Sunny | 5 to 15 mph W | 0% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Tuesday | 58°F | Mostly Sunny | 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lennox, SD
Last spring frost
May 2
First fall frost
Oct 2
Growing season
151 days
Hardiness zone
5a
Explore more for Lennox, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Canton, Sd (14.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.