Fossil, OR Weather & Growing Conditions
Overnight
52°F
Areas Of Smoke
Areas of smoke. Mostly clear, with a low around 52. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Areas Of Smoke | 5 mph E | 0% |
| Tuesday | 80°F | Areas Of Smoke | 3 to 12 mph E | 0% |
| Tuesday Night | 57°F | Areas Of Smoke | 3 to 12 mph E | 0% |
| Wednesday | 88°F | Areas Of Smoke | 3 to 8 mph N | 0% |
| Wednesday Night | 62°F | Patchy Smoke then Mostly Clear | 2 to 8 mph NE | 0% |
| Thursday | 92°F | Sunny | 3 to 9 mph SW | 0% |
| Thursday Night | 65°F | Mostly Clear | 2 to 9 mph W | 0% |
| Friday | 88°F | Sunny | 5 to 12 mph W | 0% |
| Friday Night | 62°F | Mostly Clear | 2 to 12 mph NW | 0% |
| Saturday | 85°F | Sunny | 3 to 12 mph W | 0% |
| Saturday Night | 58°F | Mostly Clear | 2 to 12 mph W | 0% |
| Sunday | 80°F | Sunny | 3 to 10 mph W | 0% |
| Sunday Night | 55°F | Mostly Clear | 3 to 10 mph W | 0% |
| Monday | 78°F | Sunny | 3 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fossil, OR
Last spring frost
Jun 3
First fall frost
Sep 14
Growing season
98 days
Hardiness zone
7a
Explore more for Fossil, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Fossil, Or (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.