Island City, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Island City, a city in Union County, Oregon.
Today
88°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 88. North wind 6 to 10 mph.
7-day forecast for Island City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Areas Of Smoke | 6 to 10 mph N | 0% |
| Tonight | 50°F | Areas Of Smoke | 0 to 8 mph NW | 0% |
| Wednesday | 96°F | Areas Of Smoke | 0 to 5 mph N | 0% |
| Wednesday Night | 55°F | Areas Of Smoke then Mostly Clear | 1 to 5 mph SW | 0% |
| Thursday | 101°F | Sunny | 1 to 6 mph W | 0% |
| Thursday Night | 60°F | Clear | 6 mph W | 0% |
| Friday | 98°F | Sunny | 2 to 13 mph W | 0% |
| Friday Night | 58°F | Mostly Clear | 3 to 13 mph W | 0% |
| Saturday | 95°F | Sunny | 2 to 14 mph W | 0% |
| Saturday Night | 56°F | Mostly Clear | 5 to 14 mph W | 0% |
| Sunday | 89°F | Sunny | 2 to 13 mph NW | 0% |
| Sunday Night | 52°F | Mostly Clear | 3 to 13 mph W | 0% |
| Monday | 89°F | Sunny | 2 to 13 mph NW | 0% |
| Monday Night | 52°F | Mostly Clear | 3 to 13 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Island City (45.336, -118.049). Updated through the day.
Growing snapshot for Island City
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
6b
More local growing data for Island City: nearby ZIP 97850 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, La Grande, Or (4 mi from Island City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.