Rainier, WA Weather & Growing Conditions
Today
90°F
Sunny then Areas Of Smoke
Areas of smoke after noon. Sunny, with a high near 90. Northeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny then Areas Of Smoke | 7 mph NE | 0% |
| Tonight | 59°F | Smoke | 2 to 6 mph NE | 0% |
| Wednesday | 95°F | Areas Of Smoke | 2 to 6 mph NNE | 0% |
| Wednesday Night | 60°F | Mostly Clear | 0 to 3 mph N | 0% |
| Thursday | 94°F | Sunny | 0 to 5 mph WNW | 0% |
| Thursday Night | 58°F | Mostly Clear | 5 mph WSW | 0% |
| Friday | 90°F | Sunny | 6 mph WSW | 0% |
| Friday Night | 56°F | Mostly Clear | 1 to 6 mph WSW | 0% |
| Saturday | 84°F | Sunny | 1 to 8 mph WSW | 0% |
| Saturday Night | 53°F | Mostly Clear | 3 to 8 mph WSW | 0% |
| Sunday | 80°F | Mostly Sunny | 6 mph WSW | 0% |
| Sunday Night | 53°F | Mostly Clear | 2 to 6 mph WSW | 0% |
| Monday | 79°F | Mostly Sunny | 2 to 6 mph WNW | 0% |
| Monday Night | 53°F | Partly Cloudy | 2 to 6 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rainier, WA
Last spring frost
Apr 29
First fall frost
Oct 14
Growing season
169 days
Hardiness zone
8b
Explore more for Rainier, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Olympia Ap, Wa (14.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.