John Day, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for John Day, a city in Grant County, Oregon.
Overnight
31°F
Mostly Clear
Mostly clear, with a low around 31. East wind around 2 mph.
7-day forecast for John Day
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 31°F | Mostly Clear | 2 mph E | 0% |
| Wednesday | 58°F | Sunny | 2 mph NW | 1% |
| Wednesday Night | 35°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph W | 23% |
| Thursday | 53°F | Slight Chance Rain Showers then Partly Sunny | 0 to 3 mph NW | 23% |
| Thursday Night | 29°F | Mostly Clear | 0 to 8 mph SE | 0% |
| Friday | 60°F | Partly Sunny | 0 to 8 mph S | 0% |
| Friday Night | 34°F | Partly Cloudy | 0 to 9 mph SE | 0% |
| Saturday | 66°F | Mostly Sunny | 5 to 9 mph SE | 0% |
| Saturday Night | 36°F | Mostly Cloudy | 6 to 18 mph SE | 2% |
| Sunday | 60°F | Partly Sunny | 0 to 10 mph S | 4% |
| Sunday Night | 35°F | Mostly Cloudy | 0 to 7 mph E | 1% |
| Monday | 61°F | Partly Sunny | 1 to 7 mph S | 4% |
| Monday Night | 35°F | Mostly Cloudy | 1 to 8 mph S | 13% |
| Tuesday | 60°F | Slight Chance Rain Showers | 2 to 8 mph SE | 15% |
Forecast source: National Weather Service (api.weather.gov) for John Day (44.418, -118.956). Updated through the day.
Growing snapshot for John Day
Last spring frost
May 28
First fall frost
Sep 18
Growing season
113 days
Hardiness zone
6b
More local growing data for John Day: nearby ZIP 97845 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, John Day, Or (2.8 mi from John Day). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.