Jefferson, OR Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Jefferson, a city in Marion County, Oregon.

Tonight

51°F

Mostly Clear then Patchy Fog

Patchy fog after 1am. Mostly clear, with a low around 51. North northwest wind around 2 mph.

7-day forecast for Jefferson

When	Temp	Forecast	Wind	Precip
Tonight	51°F	Mostly Clear then Patchy Fog	2 mph NNW	0%
Saturday	78°F	Patchy Fog then Mostly Sunny	0 to 5 mph N	0%
Saturday Night	52°F	Partly Cloudy then Patchy Fog	1 to 5 mph N	0%
Sunday	81°F	Patchy Fog then Sunny	1 to 6 mph NNW	0%
Sunday Night	52°F	Mostly Clear then Patchy Fog	1 to 5 mph NW	0%
Monday	76°F	Patchy Fog then Mostly Sunny	0 to 7 mph NNW	0%
Monday Night	52°F	Partly Cloudy	2 to 6 mph N	0%
Tuesday	73°F	Mostly Sunny	2 to 6 mph NNW	0%
Tuesday Night	49°F	Partly Cloudy	2 to 6 mph NNW	0%
Wednesday	72°F	Mostly Sunny	2 to 6 mph N	0%
Wednesday Night	51°F	Partly Cloudy	1 to 5 mph N	1%
Thursday	75°F	Mostly Sunny	1 to 5 mph NNW	6%
Thursday Night	52°F	Slight Chance Light Rain	3 mph W	20%
Friday	69°F	Mostly Sunny	2 to 7 mph W	13%

Forecast source: National Weather Service (api.weather.gov) for Jefferson (44.717, -123.006). Updated through the day.

Growing snapshot for Jefferson

Last spring frost

Mar 29

First fall frost

Nov 6

Growing season

222 days

Hardiness zone

More local growing data for Jefferson: nearby ZIP 97352 weather · frost dates · planting calendar · Oregon frost dates

Nearby towns & communities

Aumsville Aurora Brooks Butteville Donald Eola Four Corners Gates Gervais Hayesville Hubbard Keizer Labish Village Lyons Marion Mehama Mount Angel Salem Scotts Mills Silverton St. Paul Stayton Sublimity Turner Woodburn

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Climate data from the nearest NOAA station, Stayton, Or (10.8 mi from Jefferson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.