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
33°F
Areas Of Fog
Areas of fog. Mostly clear. Low around 33, with temperatures rising to around 35 overnight. Wind around 0 mph.
7-day forecast for Royal City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 33°F | Areas Of Fog | 0 mph | 1% |
| Wednesday | 51°F | Areas Of Fog then Sunny | 2 mph E | 7% |
| Wednesday Night | 38°F | Chance Rain Showers | 1 mph E | 32% |
| Thursday | 58°F | Patchy Fog then Mostly Sunny | 3 mph SW | 2% |
| Thursday Night | 36°F | Partly Cloudy | 0 to 3 mph W | 3% |
| Friday | 53°F | Mostly Cloudy | 2 mph SE | 3% |
| Friday Night | 35°F | Mostly Cloudy | 2 mph NE | 4% |
| Saturday | 56°F | Mostly Sunny | 0 to 3 mph N | 1% |
| Saturday Night | 37°F | Mostly Cloudy | 2 mph W | 2% |
| Sunday | 59°F | Partly Sunny | 2 to 7 mph SW | 2% |
| Sunday Night | 35°F | Mostly Cloudy | 2 mph W | 1% |
| Monday | 54°F | Partly Sunny | 2 mph N | 7% |
| Monday Night | 35°F | Slight Chance Rain Showers | 1 mph NW | 16% |
| Tuesday | 56°F | Slight Chance Rain Showers | 2 mph N | 17% |
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
Nearby towns & communities
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Krupp
Lakeview
Marine View
Moses Lake
Moses Lake North
Quincy
Schwana
Soap Lake
Sunland Estates
Vantage
Warden
Wheeler
Wilson Creek
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 Nov 4, 2026.