Irrigon, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Irrigon, a city in Morrow County, Oregon.
Today
53°F
Patchy Fog
Patchy fog before 1pm. Mostly sunny. High near 53, with temperatures falling to around 49 in the afternoon. Northeast wind around 1 mph.
7-day forecast for Irrigon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 53°F | Patchy Fog | 1 mph NE | 0% |
| Tonight | 39°F | Chance Rain Showers | 3 mph SW | 39% |
| Thursday | 60°F | Sunny | 2 to 8 mph SW | 5% |
| Thursday Night | 35°F | Patchy Fog | 2 mph S | 1% |
| Friday | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 1 mph S | 16% |
| Friday Night | 37°F | Slight Chance Rain Showers then Mostly Cloudy | 2 mph SE | 16% |
| Saturday | 60°F | Mostly Sunny | 2 mph NE | 0% |
| Saturday Night | 39°F | Mostly Cloudy | 2 mph W | 3% |
| Sunday | 59°F | Mostly Cloudy | 2 to 7 mph SW | 3% |
| Sunday Night | 39°F | Mostly Cloudy | 3 mph W | 3% |
| Monday | 56°F | Mostly Cloudy | 1 mph N | 5% |
| Monday Night | 38°F | Mostly Cloudy | 1 mph E | 14% |
| Tuesday | 60°F | Slight Chance Rain Showers | 2 mph S | 16% |
| Tuesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph SE | 16% |
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 Nov 4, 2026.