Union, OR Weather & Growing Conditions
Today
81°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 81. Northwest wind 1 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Areas Of Smoke | 1 to 9 mph NW | 0% |
| Tonight | 51°F | Areas Of Smoke | 0 to 9 mph N | 0% |
| Wednesday | 89°F | Areas Of Smoke | 0 to 5 mph W | 0% |
| Wednesday Night | 57°F | Patchy Smoke then Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 94°F | Sunny | 0 to 6 mph W | 0% |
| Thursday Night | 60°F | Mostly Clear | 1 to 6 mph N | 0% |
| Friday | 92°F | Sunny | 1 to 10 mph NW | 0% |
| Friday Night | 58°F | Mostly Clear | 2 to 10 mph N | 0% |
| Saturday | 89°F | Sunny | 2 to 10 mph NW | 0% |
| Saturday Night | 56°F | Mostly Clear | 5 to 10 mph N | 0% |
| Sunday | 85°F | Sunny | 5 to 10 mph NW | 0% |
| Sunday Night | 53°F | Mostly Clear | 3 to 10 mph N | 0% |
| Monday | 84°F | Sunny | 3 to 10 mph NW | 0% |
| Monday Night | 53°F | Mostly Clear | 3 to 10 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union, OR
Last spring frost
May 11
First fall frost
Sep 26
Growing season
136 days
Hardiness zone
6b
Explore more for Union, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Union, Or (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.