Rainier, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rainier, a city in Columbia County, Oregon.
Tonight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. Northwest wind 2 to 6 mph.
7-day forecast for Rainier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Partly Cloudy | 2 to 6 mph NW | 0% |
| Saturday | 75°F | Partly Sunny | 2 to 6 mph NW | 0% |
| Saturday Night | 52°F | Partly Cloudy | 6 mph NW | 0% |
| Sunday | 76°F | Mostly Sunny | 5 to 8 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 5 to 8 mph NNW | 0% |
| Monday | 72°F | Mostly Sunny | 5 to 9 mph NW | 0% |
| Monday Night | 52°F | Partly Cloudy | 3 to 9 mph NW | 0% |
| Tuesday | 69°F | Partly Sunny | 3 to 9 mph NW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 1 to 9 mph NW | 1% |
| Wednesday | 69°F | Mostly Sunny | 1 to 6 mph NNW | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 2 to 6 mph NNW | 2% |
| Thursday | 72°F | Partly Sunny | 5 mph NNW | 9% |
| Thursday Night | 52°F | Slight Chance Light Rain | 5 mph WNW | 23% |
| Friday | 66°F | Slight Chance Light Rain then Partly Sunny | 3 to 8 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Rainier (46.071, -122.941). Updated through the day.
Growing snapshot for Rainier
Last spring frost
Apr 8
First fall frost
Nov 5
Growing season
210 days
Hardiness zone
8b
More local growing data for Rainier: nearby ZIP 97048 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Longview, Wa (9.8 mi from Rainier). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.