Lostine, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lostine, a city in Wallowa County, Oregon.
This Afternoon
53°F
Slight Chance Rain Showers
A slight chance of rain showers before 4pm. Mostly cloudy. High near 53, with temperatures falling to around 45 in the afternoon. Northeast wind around 2 mph. Chance of precipitation is 20%.
7-day forecast for Lostine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 53°F | Slight Chance Rain Showers | 2 mph NE | 15% |
| Tonight | 26°F | Mostly Cloudy then Patchy Fog | 0 to 3 mph NW | 2% |
| Wednesday | 55°F | Patchy Fog then Sunny | 2 mph NE | 1% |
| Wednesday Night | 27°F | Partly Cloudy then Chance Rain And Snow Showers | 2 mph SW | 54% |
| Thursday | 50°F | Chance Rain And Snow Showers then Partly Sunny | 0 to 6 mph W | 54% |
| Thursday Night | 23°F | Partly Cloudy | 0 to 7 mph E | 4% |
| Friday | 55°F | Partly Sunny | 1 to 6 mph S | 8% |
| Friday Night | 29°F | Mostly Cloudy | 1 to 8 mph S | 6% |
| Saturday | 63°F | Mostly Sunny | 2 to 7 mph S | 1% |
| Saturday Night | 34°F | Mostly Cloudy | 3 to 17 mph S | 9% |
| Sunday | 59°F | Partly Sunny | 1 to 14 mph SW | 13% |
| Sunday Night | 30°F | Mostly Cloudy | 1 to 5 mph S | 12% |
| Monday | 59°F | Partly Sunny then Slight Chance Rain Showers | 0 to 3 mph SE | 16% |
| Monday Night | 30°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 6 mph S | 16% |
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 Nov 4, 2026.