Chain Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chain Lake, a community in Snohomish County, Washington.
Today
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 |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny | 1 mph NW | 0% |
| Tonight | 50°F | Partly Cloudy | 1 mph NNW | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph NNW | 0% |
| Monday | 71°F | Mostly Sunny | 2 mph NNW | 0% |
| Monday Night | 49°F | Partly Cloudy | 2 mph N | 0% |
| Tuesday | 68°F | Partly Sunny | 1 mph NW | 0% |
| Tuesday Night | 48°F | Mostly Cloudy | 1 mph NE | 11% |
| Wednesday | 67°F | Partly Sunny then Slight Chance Light Rain | 1 mph N | 17% |
| Wednesday Night | 49°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph N | 17% |
| Thursday | 65°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph NNW | 19% |
| Thursday Night | 47°F | Slight Chance Light Rain | 2 mph NNW | 20% |
| Friday | 64°F | Slight Chance Light Rain | 1 mph NNW | 18% |
| Friday Night | 46°F | Slight Chance Light Rain | 1 mph N | 16% |
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
Arlington
Arlington Heights
Bothell East
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Bunk Foss
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Cavalero
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Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
Hat Island
Kayak Point
Lake Bosworth
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Lake Goodwin
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Lake Stevens
Lake Stickney
Larch Way
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.