Fossil, OR Weather & Growing Conditions
This Afternoon
69°F
Sunny
Sunny, with a high near 69. Northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Sunny | 6 mph NW | 0% |
| Tonight | 50°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Saturday | 72°F | Sunny | 5 mph SW | 0% |
| Saturday Night | 52°F | Partly Cloudy | 0 to 3 mph E | 0% |
| Sunday | 76°F | Sunny | 1 to 7 mph E | 0% |
| Sunday Night | 56°F | Mostly Clear | 1 to 7 mph E | 0% |
| Monday | 76°F | Sunny | 1 to 6 mph W | 0% |
| Monday Night | 54°F | Mostly Clear | 1 to 6 mph W | 0% |
| Tuesday | 72°F | Sunny | 1 to 7 mph W | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 1 to 7 mph NW | 0% |
| Wednesday | 69°F | Sunny | 5 mph W | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 1 to 5 mph NE | 0% |
| Thursday | 74°F | Mostly Sunny | 2 to 7 mph SE | 1% |
| Thursday Night | 52°F | Partly Cloudy | 2 to 7 mph NW | 5% |
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 Sep 19, 2026.