Royal City, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Royal City, a city in Grant County, Washington.
Overnight
54°F
Areas Of Smoke
Areas of smoke. Clear. Low around 54, with temperatures rising to around 57 overnight. North wind around 3 mph.
7-day forecast for Royal City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Areas Of Smoke | 3 mph N | 0% |
| Tuesday | 88°F | Smoke then Haze | 5 mph N | 0% |
| Tuesday Night | 57°F | Areas Of Smoke then Haze | 2 mph N | 0% |
| Wednesday | 92°F | Areas Of Smoke | 3 mph SE | 0% |
| Wednesday Night | 60°F | Areas Of Smoke then Clear | 2 mph W | 0% |
| Thursday | 96°F | Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 63°F | Clear | 5 mph W | 0% |
| Friday | 96°F | Sunny | 2 to 14 mph W | 0% |
| Friday Night | 61°F | Clear | 3 to 14 mph W | 0% |
| Saturday | 92°F | Sunny | 2 to 13 mph W | 0% |
| Saturday Night | 60°F | Mostly Clear | 6 to 13 mph W | 0% |
| Sunday | 88°F | Sunny | 2 to 8 mph W | 0% |
| Sunday Night | 58°F | Mostly Clear | 5 to 9 mph W | 0% |
| Monday | 87°F | Sunny | 2 to 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Royal City (46.902, -119.621). Updated through the day.
Growing snapshot for Royal City
Last spring frost
Apr 23
First fall frost
Oct 12
Growing season
172 days
Hardiness zone
7a
More local growing data for Royal City: nearby ZIP 99357 weather · frost dates · planting calendar · Washington frost dates
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Wheeler
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Climate data from the nearest NOAA station, Smyrna, Wa (3.8 mi from Royal City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.