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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
78°F
Areas Of Fog then Mostly Sunny
Areas of fog before 10am. Mostly sunny, with a high near 78. North wind 0 to 5 mph.

7-day forecast for South Lebanon

WhenTempForecastWindPrecip
Today 78°F Areas Of Fog then Mostly Sunny 0 to 5 mph N 0%
Tonight 51°F Partly Cloudy 0 to 3 mph N 0%
Sunday 80°F Areas Of Fog then Sunny 0 to 6 mph NNW 0%
Sunday Night 52°F Mostly Clear then Patchy Fog 0 to 5 mph NNW 0%
Monday 76°F Areas Of Fog then Mostly Sunny 0 to 7 mph NNW 0%
Monday Night 50°F Mostly Clear then Patchy Fog 0 to 7 mph N 0%
Tuesday 73°F Areas Of Fog then Mostly Sunny 0 to 6 mph N 0%
Tuesday Night 48°F Partly Cloudy then Patchy Fog 0 to 6 mph N 0%
Wednesday 72°F Areas Of Fog then Mostly Sunny 0 to 5 mph NNW 0%
Wednesday Night 49°F Partly Cloudy 1 to 5 mph N 1%
Thursday 71°F Mostly Sunny 1 to 7 mph N 7%
Thursday Night 49°F Mostly Cloudy 2 to 7 mph NNW 10%
Friday 68°F Mostly Sunny 2 to 8 mph NNW 9%
Friday Night 46°F Partly Cloudy 2 to 8 mph N 9%

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 19, 2026.