Chain Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chain Lake, a community in Snohomish County, Washington.
This Afternoon
73°F
Mostly Sunny
Mostly sunny. High near 73, with temperatures falling to around 71 in the afternoon. Northwest wind around 1 mph.
7-day forecast for Chain Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 1 mph NW | 0% |
| Tonight | 50°F | Mostly Clear | 1 mph NNW | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph NW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph NNW | 0% |
| Monday | 71°F | Partly Sunny | 2 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy | 2 mph N | 1% |
| Tuesday | 68°F | Partly Sunny | 1 mph NNW | 1% |
| Tuesday Night | 48°F | Mostly Cloudy | 2 mph NE | 13% |
| Wednesday | 67°F | Partly Sunny then Slight Chance Light Rain | 1 mph SE | 16% |
| Wednesday Night | 48°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph NNE | 16% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph NNE | 21% |
| Thursday Night | 47°F | Slight Chance Light Rain | 2 mph NNW | 21% |
| Friday | 63°F | Slight Chance Light Rain | 1 mph NW | 20% |
| Friday Night | 45°F | Slight Chance Light Rain | 1 mph NE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Chain Lake (47.902, -121.987). Updated through the day.
Growing snapshot for Chain Lake
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b
More local growing data for Chain Lake: nearby ZIP 98290 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Alderwood Manor
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Arlington Heights
Bothell East
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Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
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Kayak Point
Lake Bosworth
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Lochsloy
Climate data from the nearest NOAA station, Monroe, Wa (7.6 mi from Chain Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.