Heppner, OR Weather & Growing Conditions
Overnight
35°F
Mostly Clear
Mostly clear, with a low around 35. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Mostly Clear | 5 mph S | 0% |
| Wednesday | 51°F | Sunny | 0 to 5 mph SW | 1% |
| Wednesday Night | 41°F | Chance Rain Showers | 2 to 12 mph SW | 50% |
| Thursday | 51°F | Slight Chance Rain Showers then Mostly Sunny | 2 to 12 mph SW | 19% |
| Thursday Night | 40°F | Partly Cloudy | 2 to 14 mph S | 0% |
| Friday | 55°F | Partly Sunny | 2 to 14 mph S | 0% |
| Friday Night | 44°F | Mostly Cloudy | 2 to 10 mph S | 2% |
| Saturday | 60°F | Mostly Sunny | 3 to 10 mph S | 0% |
| Saturday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 3 to 15 mph S | 15% |
| Sunday | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 15 mph SW | 15% |
| Sunday Night | 41°F | Mostly Cloudy | 3 mph SW | 5% |
| Monday | 53°F | Partly Sunny | 3 mph N | 7% |
| Monday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 9 mph S | 15% |
| Tuesday | 57°F | Slight Chance Rain Showers | 3 to 10 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Heppner, OR
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
7a
Explore more for Heppner, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Heppner, Or (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.