Irrigon, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Irrigon, a city in Morrow County, Oregon.
Overnight
53°F
Clear
Clear. Low around 53, with temperatures rising to around 55 overnight. South wind around 2 mph.
7-day forecast for Irrigon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Clear | 2 mph S | 0% |
| Saturday | 82°F | Sunny | 2 mph SW | 0% |
| Saturday Night | 52°F | Mostly Clear | 2 mph E | 0% |
| Sunday | 84°F | Sunny | 2 mph N | 0% |
| Sunday Night | 54°F | Clear | 2 mph NE | 0% |
| Monday | 85°F | Sunny | 2 mph W | 0% |
| Monday Night | 55°F | Mostly Clear | 2 mph SW | 0% |
| Tuesday | 81°F | Sunny | 5 mph SW | 0% |
| Tuesday Night | 53°F | Mostly Clear | 5 mph SW | 0% |
| Wednesday | 77°F | Mostly Sunny | 5 mph SW | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph SW | 0% |
| Thursday | 75°F | Mostly Sunny | 2 mph W | 1% |
| Thursday Night | 51°F | Partly Cloudy | 2 mph SW | 6% |
| Friday | 73°F | Mostly Sunny | 5 mph SW | 9% |
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 Sep 19, 2026.