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John Day, OR Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for John Day, a city in Grant County, Oregon.

Today
79°F
Sunny
Sunny, with a high near 79. West wind 0 to 6 mph.

7-day forecast for John Day

WhenTempForecastWindPrecip
Today 79°F Sunny 0 to 6 mph W 0%
Tonight 49°F Partly Cloudy 1 to 6 mph N 0%
Sunday 85°F Sunny 0 to 6 mph NE 0%
Sunday Night 50°F Mostly Clear 1 to 7 mph E 0%
Monday 86°F Sunny 1 to 7 mph NE 0%
Monday Night 53°F Partly Cloudy 2 mph E 0%
Tuesday 84°F Sunny 1 to 8 mph W 5%
Tuesday Night 50°F Partly Cloudy 1 to 8 mph NW 5%
Wednesday 79°F Sunny 2 to 7 mph NW 1%
Wednesday Night 47°F Partly Cloudy 1 to 7 mph NE 1%
Thursday 81°F Mostly Sunny 1 to 6 mph E 2%
Thursday Night 48°F Partly Cloudy 6 mph SE 5%
Friday 75°F Mostly Sunny 3 to 10 mph S 6%
Friday Night 44°F Mostly Cloudy 3 to 10 mph W 9%

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

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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 Sep 19, 2026.