Lebanon, SD Weather & Growing Conditions
Tonight
33°F
Patchy Fog
Patchy fog. Cloudy, with a low around 33. North northwest wind 15 to 20 mph, with gusts as high as 29 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 33°F | Patchy Fog | 15 to 20 mph NNW | 7% |
| Wednesday | 45°F | Patchy Fog then Mostly Cloudy | 21 mph NNW | 7% |
| Wednesday Night | 31°F | Mostly Cloudy then Patchy Fog | 14 to 18 mph NNW | 2% |
| Thursday | 45°F | Patchy Fog then Mostly Sunny | 8 to 14 mph N | 0% |
| Thursday Night | 25°F | Partly Cloudy | 8 mph ESE | 0% |
| Friday | 45°F | Mostly Sunny | 8 mph S | 0% |
| Friday Night | 29°F | Partly Cloudy | 6 to 9 mph SW | 0% |
| Saturday | 56°F | Mostly Sunny | 9 to 16 mph W | 4% |
| Saturday Night | 33°F | Mostly Clear | 12 mph W | 1% |
| Sunday | 57°F | Sunny | 12 mph SSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 10 to 14 mph SW | 0% |
| Monday | 57°F | Sunny | 12 to 18 mph NW | 0% |
| Monday Night | 35°F | Partly Cloudy | 9 mph WNW | 0% |
| Tuesday | 54°F | Mostly Sunny | 8 to 12 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lebanon, SD
Last spring frost
May 7
First fall frost
Oct 2
Growing season
147 days
Hardiness zone
4b
Explore more for Lebanon, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Gettysburg, Sd (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.