Three Rivers, OR Weather & Growing Conditions
Overnight
47°F
Smoke
Smoke. Mostly clear, with a low around 47. Southeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Smoke | 8 mph SE | 0% |
| Tuesday | 83°F | Smoke | 5 to 9 mph SE | 0% |
| Tuesday Night | 54°F | Areas Of Smoke | 7 mph E | 0% |
| Wednesday | 86°F | Areas Of Smoke | 5 to 9 mph W | 0% |
| Wednesday Night | 57°F | Patchy Smoke then Mostly Clear | 3 to 9 mph SW | 0% |
| Thursday | 86°F | Sunny | 3 to 12 mph W | 0% |
| Thursday Night | 55°F | Mostly Clear | 2 to 12 mph W | 0% |
| Friday | 82°F | Sunny | 2 to 10 mph W | 0% |
| Friday Night | 53°F | Mostly Clear | 2 to 10 mph NW | 0% |
| Saturday | 78°F | Sunny | 2 to 12 mph NW | 0% |
| Saturday Night | 48°F | Mostly Clear | 2 to 12 mph NW | 0% |
| Sunday | 72°F | Sunny | 2 to 10 mph NW | 0% |
| Sunday Night | 46°F | Mostly Clear | 2 to 10 mph NW | 0% |
| Monday | 71°F | Sunny | 2 to 10 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Three Rivers, OR
Last spring frost
Jun 7
First fall frost
Sep 18
Growing season
100 days
Hardiness zone
6b
Explore more for Three Rivers, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Wickiup Dam, Or (17.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.