South Lebanon, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Lebanon, a community in Linn County, Oregon.
This Afternoon
78°F
Mostly Sunny
Mostly sunny, with a high near 78. North northwest wind around 5 mph.
7-day forecast for South Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Mostly Sunny | 5 mph NNW | 0% |
| Tonight | 50°F | Mostly Clear then Patchy Fog | 0 to 3 mph N | 0% |
| Sunday | 80°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy then Patchy Fog | 0 to 3 mph NW | 0% |
| Monday | 77°F | Areas Of Fog then Partly Sunny | 0 to 6 mph NNW | 0% |
| Monday Night | 51°F | Partly Cloudy then Patchy Fog | 1 to 6 mph NNW | 0% |
| Tuesday | 73°F | Patchy Fog then Mostly Sunny | 1 to 6 mph NNW | 0% |
| Tuesday Night | 48°F | Partly Cloudy then Patchy Fog | 0 to 6 mph NNW | 0% |
| Wednesday | 72°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph NW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 1 to 5 mph N | 1% |
| Thursday | 70°F | Mostly Sunny | 1 to 8 mph N | 6% |
| Thursday Night | 48°F | Mostly Cloudy then Slight Chance Light Rain | 2 to 7 mph N | 20% |
| Friday | 67°F | Slight Chance Light Rain | 2 to 8 mph N | 20% |
| Friday Night | 46°F | Partly Cloudy | 2 to 8 mph NE | 10% |
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 Sep 20, 2026.