Three Rivers, OR Weather & Growing Conditions
Tonight
36°F
Mostly Clear
Mostly clear. Low around 36, with temperatures rising to around 38 overnight. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Mostly Clear | 0 mph | 0% |
| Saturday | 77°F | Sunny | 2 mph SW | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 80°F | Sunny | 2 mph E | 0% |
| Sunday Night | 40°F | Mostly Clear | 1 mph N | 0% |
| Monday | 81°F | Sunny | 2 mph W | 0% |
| Monday Night | 40°F | Partly Cloudy | 2 mph N | 0% |
| Tuesday | 78°F | Sunny | 0 to 6 mph W | 0% |
| Tuesday Night | 37°F | Mostly Clear | 0 to 6 mph NW | 0% |
| Wednesday | 75°F | Sunny | 1 to 5 mph W | 1% |
| Wednesday Night | 36°F | Partly Cloudy | 0 to 5 mph NW | 1% |
| Thursday | 76°F | Mostly Sunny | 0 to 5 mph W | 4% |
| Thursday Night | 37°F | Partly Cloudy | 1 to 5 mph W | 5% |
| Friday | 68°F | Mostly Sunny | 1 to 6 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Three Rivers, OR
Growing season
42 days
Hardiness zone
6a
Explore more for Three Rivers, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Sunriver, Or (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.