Junction City, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Junction City, a city in Lane County, Oregon.
Today
96°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 96. North wind 6 to 12 mph, with gusts as high as 20 mph.
7-day forecast for Junction City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 96°F | Areas Of Smoke | 6 to 12 mph N | 0% |
| Tonight | 61°F | Areas Of Smoke | 1 to 12 mph N | 0% |
| Wednesday | 99°F | Areas Of Smoke | 1 to 6 mph N | 0% |
| Wednesday Night | 59°F | Clear | 1 to 6 mph W | 0% |
| Thursday | 99°F | Sunny | 0 to 7 mph WNW | 0% |
| Thursday Night | 56°F | Clear | 2 to 7 mph W | 0% |
| Friday | 94°F | Sunny | 2 to 10 mph WNW | 0% |
| Friday Night | 58°F | Clear | 3 to 10 mph N | 0% |
| Saturday | 91°F | Sunny | 3 to 12 mph N | 0% |
| Saturday Night | 54°F | Mostly Clear | 5 to 12 mph NNW | 0% |
| Sunday | 85°F | Sunny | 5 to 12 mph N | 0% |
| Sunday Night | 52°F | Mostly Clear | 5 to 12 mph N | 0% |
| Monday | 84°F | Sunny | 5 to 10 mph N | 0% |
| Monday Night | 51°F | Mostly Clear | 2 to 10 mph NNW | 0% |
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 Aug 4, 2026.