Heppner, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Heppner, a city in Morrow County, Oregon.
Today
85°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 85. East wind 5 to 12 mph, with gusts as high as 23 mph.
7-day forecast for Heppner
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Areas Of Smoke | 5 to 12 mph E | 0% |
| Tonight | 58°F | Areas Of Smoke | 5 to 10 mph E | 0% |
| Wednesday | 92°F | Areas Of Smoke | 5 to 9 mph NE | 0% |
| Wednesday Night | 62°F | Patchy Smoke then Clear | 3 to 7 mph S | 0% |
| Thursday | 96°F | Sunny | 6 to 9 mph W | 0% |
| Thursday Night | 65°F | Clear | 5 to 9 mph W | 0% |
| Friday | 94°F | Sunny | 8 to 15 mph W | 0% |
| Friday Night | 62°F | Clear | 7 to 15 mph SW | 0% |
| Saturday | 90°F | Sunny | 7 to 15 mph W | 0% |
| Saturday Night | 59°F | Mostly Clear | 7 to 15 mph W | 0% |
| Sunday | 85°F | Sunny | 7 to 14 mph W | 0% |
| Sunday Night | 56°F | Mostly Clear | 6 to 13 mph SW | 0% |
| Monday | 84°F | Sunny | 6 to 12 mph W | 0% |
| Monday Night | 55°F | Mostly Clear | 6 to 12 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Heppner (45.353, -119.561). Updated through the day.
Growing snapshot for Heppner
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
7a
More local growing data for Heppner: nearby ZIP 97836 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Heppner, Or (5.3 mi from Heppner). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.