Roy, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roy, a city in Pierce County, Washington.
Overnight
53°F
Clear
Clear, with a low around 53. East wind around 2 mph.
7-day forecast for Roy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Clear | 2 mph E | 0% |
| Tuesday | 89°F | Sunny then Smoke | 2 to 7 mph NE | 0% |
| Tuesday Night | 58°F | Smoke | 0 to 6 mph NE | 0% |
| Wednesday | 94°F | Areas Of Smoke | 0 to 5 mph N | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 93°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 mph WSW | 0% |
| Friday | 89°F | Sunny | 2 to 6 mph WSW | 0% |
| Friday Night | 57°F | Mostly Clear | 1 to 6 mph SW | 0% |
| Saturday | 85°F | Sunny | 1 to 7 mph WSW | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 7 mph SW | 0% |
| Sunday | 80°F | Mostly Sunny | 2 to 6 mph WSW | 0% |
| Sunday Night | 53°F | Mostly Clear | 1 to 6 mph WSW | 0% |
| Monday | 79°F | Mostly Sunny | 1 to 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Roy (46.990, -122.541). Updated through the day.
Growing snapshot for Roy
Last spring frost
Apr 11
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
8b
More local growing data for Roy: nearby ZIP 98580 weather · frost dates · planting calendar · Washington frost dates
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Home
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Climate data from the nearest NOAA station, Mcmillin Rsvr, Wa (15.8 mi from Roy). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.