Junction City, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Junction City, a city in Lane County, Oregon.
This Afternoon
73°F
Sunny
Sunny, with a high near 73. North northwest wind around 2 mph.
7-day forecast for Junction City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 2 mph NNW | 0% |
| Tonight | 49°F | Mostly Clear then Areas Of Fog | 0 to 3 mph NNW | 0% |
| Saturday | 78°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph NNW | 0% |
| Saturday Night | 50°F | Partly Cloudy then Patchy Fog | 1 to 5 mph N | 0% |
| Sunday | 81°F | Patchy Fog then Sunny | 1 to 6 mph N | 0% |
| Sunday Night | 50°F | Mostly Clear then Patchy Fog | 1 to 6 mph NW | 0% |
| Monday | 76°F | Patchy Fog then Mostly Sunny | 1 to 8 mph NNW | 0% |
| Monday Night | 50°F | Mostly Clear | 2 to 8 mph NNW | 0% |
| Tuesday | 74°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Wednesday | 73°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Thursday | 76°F | Mostly Sunny | 5 mph NNE | 6% |
| Thursday Night | 50°F | Slight Chance Light Rain | 5 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Junction City (44.212, -123.200). Updated through the day.
Growing snapshot for Junction City
Last spring frost
Apr 11
First fall frost
Oct 23
Growing season
196 days
Hardiness zone
8b
More local growing data for Junction City: nearby ZIP 97448 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Eugene Mahlon Sweet Ap, Or (6.4 mi from Junction City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.