South Lebanon, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Lebanon, a community in Linn County, Oregon.
Today
59°F
Mostly Cloudy then Light Rain Likely
Rain likely after 4pm. Mostly cloudy. High near 59, with temperatures falling to around 55 in the afternoon. South southwest wind around 5 mph. Chance of precipitation is 70%.
7-day forecast for South Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Mostly Cloudy then Light Rain Likely | 5 mph SSW | 70% |
| Tonight | 45°F | Light Rain Likely | 2 to 8 mph S | 70% |
| Thursday | 58°F | Mostly Sunny | 2 mph SE | 3% |
| Thursday Night | 39°F | Patchy Fog | 2 mph ESE | 0% |
| Friday | 60°F | Chance Light Rain | 5 mph S | 25% |
| Friday Night | 43°F | Chance Light Rain then Mostly Cloudy | 3 mph SSE | 25% |
| Saturday | 64°F | Mostly Sunny | 3 mph S | 9% |
| Saturday Night | 47°F | Light Rain | 2 to 14 mph S | 75% |
| Sunday | 56°F | Light Rain | 1 to 9 mph SSW | 75% |
| Sunday Night | 42°F | Mostly Cloudy | 1 mph NNE | 10% |
| Monday | 57°F | Partly Sunny | 0 to 3 mph S | 13% |
| Monday Night | 43°F | Chance Light Rain | 1 to 8 mph S | 28% |
| Tuesday | 60°F | Chance Light Rain | 3 to 7 mph S | 32% |
| Tuesday Night | 46°F | Chance Light Rain | 3 to 12 mph S | 31% |
Forecast source: National Weather Service (api.weather.gov) for South Lebanon (44.506, -122.901). Updated through the day.
Growing snapshot for South Lebanon
Last spring frost
Mar 14
First fall frost
Nov 18
Growing season
248 days
Hardiness zone
8b
More local growing data for South Lebanon: nearby ZIP 97355 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Lebanon, Or (4 mi from South Lebanon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.