Mirrormont, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mirrormont, a community in King County, Washington.
Overnight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. East southeast wind around 2 mph.
7-day forecast for Mirrormont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Cloudy | 2 mph ESE | 0% |
| Saturday | 72°F | Partly Sunny | 1 mph WSW | 0% |
| Saturday Night | 50°F | Mostly Clear | 1 mph NE | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph WNW | 0% |
| Sunday Night | 50°F | Mostly Clear | 2 mph N | 0% |
| Monday | 70°F | Mostly Sunny | 2 mph W | 0% |
| Monday Night | 49°F | Partly Cloudy | 2 mph NE | 1% |
| Tuesday | 66°F | Partly Sunny | 1 mph WNW | 1% |
| Tuesday Night | 48°F | Mostly Cloudy | 2 mph E | 7% |
| Wednesday | 65°F | Partly Sunny then Slight Chance Light Rain | 2 mph WSW | 15% |
| Wednesday Night | 48°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph E | 15% |
| Thursday | 62°F | Mostly Cloudy then Slight Chance Light Rain | 3 mph NNE | 20% |
| Thursday Night | 47°F | Slight Chance Light Rain | 2 mph NE | 20% |
| Friday | 61°F | Slight Chance Light Rain | 2 mph NNW | 17% |
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
Nearby towns & communities
Algona
Ames Lake
Auburn
Baring
Beaux Arts Village
Bellevue
Black Diamond
Bothell
Boulevard Park
Bryn Mawr-Skyway
Burien
Carnation
Clyde Hill
Cottage Lake
Covington
Des Moines
Duvall
East Renton Highlands
Fairwood
Fall City
Federal Way
Greenwater
High Bridge
Hobart
Hunts Point
Index
Issaquah
Kenmore
Kent
Kirkland
Climate data from the nearest NOAA station, Landsburg, Wa (4 mi from Mirrormont). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.