Hermiston, OR Weather & Growing Conditions
This Afternoon
81°F
Sunny
Sunny. High near 81, with temperatures falling to around 79 in the afternoon. West wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 5 mph W | 1% |
| Tonight | 53°F | Clear | 3 mph S | 1% |
| Saturday | 81°F | Sunny | 3 mph W | 0% |
| Saturday Night | 54°F | Partly Cloudy | 2 mph E | 0% |
| Sunday | 84°F | Sunny | 3 mph N | 0% |
| Sunday Night | 56°F | Mostly Clear | 3 mph SE | 0% |
| Monday | 85°F | Sunny | 3 mph SW | 0% |
| Monday Night | 56°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 81°F | Sunny | 5 mph SW | 0% |
| Tuesday Night | 54°F | Mostly Clear | 6 mph SW | 0% |
| Wednesday | 77°F | Sunny | 3 mph W | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 2 mph S | 0% |
| Thursday | 79°F | Mostly Sunny | 3 mph W | 1% |
| Thursday Night | 55°F | Partly Cloudy | 3 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hermiston, OR
Last spring frost
Apr 27
First fall frost
Oct 7
Growing season
163 days
Hardiness zone
7b
Explore more for Hermiston, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Hermiston 2 Nw, Or (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.