Irrigon, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Irrigon, a city in Morrow County, Oregon.
Overnight
54°F
Areas Of Smoke
Areas of smoke. Clear. Low around 54, with temperatures rising to around 56 overnight. South wind around 2 mph.
7-day forecast for Irrigon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Areas Of Smoke | 2 mph S | 0% |
| Tuesday | 90°F | Smoke | 0 to 6 mph NE | 0% |
| Tuesday Night | 58°F | Areas Of Smoke | 0 to 6 mph NE | 0% |
| Wednesday | 95°F | Areas Of Smoke | 2 mph N | 0% |
| Wednesday Night | 61°F | Areas Of Smoke then Clear | 2 mph W | 0% |
| Thursday | 99°F | Sunny | 1 to 5 mph SW | 0% |
| Thursday Night | 65°F | Clear | 3 to 7 mph SW | 0% |
| Friday | 97°F | Sunny | 5 to 9 mph SW | 0% |
| Friday Night | 64°F | Clear | 3 to 10 mph SW | 0% |
| Saturday | 94°F | Sunny | 3 to 8 mph SW | 0% |
| Saturday Night | 62°F | Clear | 6 to 13 mph SW | 0% |
| Sunday | 90°F | Sunny | 6 to 9 mph SW | 0% |
| Sunday Night | 59°F | Mostly Clear | 8 mph SW | 0% |
| Monday | 89°F | Sunny | 7 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Irrigon (45.895, -119.489). Updated through the day.
Growing snapshot for Irrigon
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
7b
More local growing data for Irrigon: nearby ZIP 97844 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Boardman, Or (7.4 mi from Irrigon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.