Rainier, OR Weather & Growing Conditions
Overnight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. Northwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Cloudy | 3 mph NW | 0% |
| Saturday | 73°F | Partly Sunny | 2 to 6 mph NNW | 0% |
| Saturday Night | 50°F | Mostly Clear | 6 mph NW | 1% |
| Sunday | 74°F | Mostly Sunny | 7 mph NNW | 0% |
| Sunday Night | 50°F | Mostly Clear | 7 mph NW | 0% |
| Monday | 71°F | Mostly Sunny | 6 to 9 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy | 6 to 9 mph NW | 0% |
| Tuesday | 68°F | Partly Sunny | 5 to 8 mph NW | 0% |
| Tuesday Night | 47°F | Partly Cloudy | 2 to 8 mph NW | 1% |
| Wednesday | 67°F | Partly Sunny | 1 to 6 mph NW | 1% |
| Wednesday Night | 48°F | Mostly Cloudy | 6 mph NW | 1% |
| Thursday | 65°F | Mostly Cloudy | 3 to 8 mph NNW | 13% |
| Thursday Night | 48°F | Mostly Cloudy | 8 mph NNW | 13% |
| Friday | 63°F | Partly Sunny | 8 mph NW | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rainier, OR
Last spring frost
Apr 8
First fall frost
Nov 5
Growing season
210 days
Hardiness zone
8b
Explore more for Rainier, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Longview, Wa (9.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.