Lostine, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lostine, a city in Wallowa County, Oregon.
Overnight
41°F
Areas Of Smoke
Areas of smoke. Mostly clear. Low around 41, with temperatures rising to around 44 overnight. Southeast wind around 2 mph.
7-day forecast for Lostine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Areas Of Smoke | 2 mph SE | 0% |
| Tuesday | 85°F | Areas Of Smoke | 1 to 6 mph NE | 0% |
| Tuesday Night | 46°F | Areas Of Smoke | 1 to 6 mph E | 0% |
| Wednesday | 92°F | Areas Of Smoke | 1 to 5 mph N | 0% |
| Wednesday Night | 51°F | Areas Of Smoke then Mostly Clear | 0 to 5 mph SW | 0% |
| Thursday | 98°F | Sunny | 1 to 7 mph W | 0% |
| Thursday Night | 55°F | Clear | 0 to 6 mph W | 0% |
| Friday | 96°F | Sunny | 0 to 12 mph W | 0% |
| Friday Night | 53°F | Clear | 1 to 12 mph SW | 0% |
| Saturday | 92°F | Sunny | 1 to 12 mph W | 0% |
| Saturday Night | 50°F | Mostly Clear | 1 to 12 mph W | 0% |
| Sunday | 88°F | Sunny | 1 to 10 mph W | 0% |
| Sunday Night | 48°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Monday | 88°F | Sunny | 0 to 9 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Lostine (45.487, -117.429). Updated through the day.
Growing snapshot for Lostine
Last spring frost
May 24
First fall frost
Oct 1
Growing season
126 days
Hardiness zone
6a
More local growing data for Lostine: nearby ZIP 97857 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Joseph, Or (14.5 mi from Lostine). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.