Harman US

Roy, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Roy, a city in Pierce County, Washington.

This Afternoon
60°F
Light Rain Likely
Rain likely after 4pm. Mostly cloudy. High near 60, with temperatures falling to around 56 in the afternoon. South southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Roy

WhenTempForecastWindPrecip
This Afternoon 60°F Light Rain Likely 6 mph SSW 61%
Tonight 45°F Light Rain 8 mph S 94%
Thursday 59°F Mostly Sunny 6 mph SSW 5%
Thursday Night 42°F Mostly Cloudy then Chance Light Rain 3 mph SSE 49%
Friday 57°F Light Rain 2 to 9 mph S 88%
Friday Night 47°F Light Rain Likely 0 to 7 mph SSE 70%
Saturday 65°F Mostly Cloudy then Chance Light Rain 1 mph S 33%
Saturday Night 49°F Light Rain 1 to 16 mph SSW 87%
Sunday 58°F Light Rain Likely 2 to 12 mph SW 69%
Sunday Night 38°F Mostly Cloudy 2 mph SSW 8%
Monday 58°F Partly Sunny then Slight Chance Light Rain 1 mph SW 21%
Monday Night 44°F Light Rain Likely 1 to 8 mph S 55%
Tuesday 58°F Light Rain Likely 8 to 13 mph S 64%
Tuesday Night 47°F Light Rain Likely 3 to 9 mph S 63%

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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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 Nov 5, 2026.