Rainier, OR Weather & Growing Conditions
Tonight
40°F
Mostly Clear
Mostly clear, with a low around 40. South southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Mostly Clear | 0 to 5 mph SSE | 2% |
| Wednesday | 53°F | Mostly Cloudy then Light Rain Likely | 5 to 8 mph SSE | 68% |
| Wednesday Night | 45°F | Light Rain | 3 to 7 mph S | 94% |
| Thursday | 53°F | Partly Sunny | 6 mph SSE | 12% |
| Thursday Night | 44°F | Patchy Fog then Chance Light Rain | 1 to 7 mph SE | 49% |
| Friday | 52°F | Light Rain Likely | 6 to 12 mph SE | 59% |
| Friday Night | 45°F | Chance Light Rain | 6 mph SE | 45% |
| Saturday | 58°F | Mostly Cloudy then Chance Light Rain | 3 to 8 mph SSE | 28% |
| Saturday Night | 48°F | Light Rain Likely | 7 to 15 mph S | 69% |
| Sunday | 54°F | Light Rain Likely | 2 to 9 mph SSW | 63% |
| Sunday Night | 43°F | Patchy Fog then Slight Chance Light Rain | 2 mph SSE | 21% |
| Monday | 53°F | Chance Light Rain | 2 to 8 mph SE | 46% |
| Monday Night | 45°F | Light Rain Likely | 6 to 14 mph SSE | 65% |
| Tuesday | 55°F | Light Rain Likely | 6 to 14 mph SSE | 65% |
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 Nov 4, 2026.