Mirrormont, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mirrormont, a community in King County, Washington.
Overnight
51°F
Patchy Smoke
Patchy smoke. Clear, with a low around 51. Northeast wind around 2 mph.
7-day forecast for Mirrormont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Patchy Smoke | 2 mph NE | 0% |
| Tuesday | 87°F | Smoke | 1 to 6 mph NNE | 0% |
| Tuesday Night | 56°F | Smoke | 1 to 5 mph NNE | 0% |
| Wednesday | 92°F | Areas Of Smoke | 3 mph NNW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 3 mph NNE | 0% |
| Thursday | 91°F | Sunny | 2 mph NNW | 0% |
| Thursday Night | 58°F | Mostly Clear | 2 mph SW | 0% |
| Friday | 87°F | Sunny | 3 mph WSW | 0% |
| Friday Night | 57°F | Mostly Clear | 3 mph NNE | 0% |
| Saturday | 83°F | Sunny | 3 mph W | 0% |
| Saturday Night | 54°F | Mostly Clear | 1 to 6 mph NNE | 1% |
| Sunday | 77°F | Mostly Sunny | 2 mph W | 1% |
| Sunday Night | 53°F | Partly Cloudy | 2 mph NNE | 0% |
| Monday | 77°F | Mostly Sunny | 3 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Mirrormont (47.460, -121.990). Updated through the day.
Growing snapshot for Mirrormont
Last spring frost
Apr 20
First fall frost
Oct 25
Growing season
187 days
Hardiness zone
8b
More local growing data for Mirrormont: nearby ZIP 98025 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Landsburg, Wa (4 mi from Mirrormont). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.