Bonney Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonney Lake, a city in Pierce County, Washington.
Today
86°F
Areas Of Smoke
Areas of smoke after 10am. Sunny, with a high near 86. North northwest wind 1 to 5 mph.
7-day forecast for Bonney Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Areas Of Smoke | 1 to 5 mph NNW | 0% |
| Tonight | 58°F | Areas Of Smoke | 0 to 5 mph NNE | 0% |
| Wednesday | 91°F | Patchy Smoke | 0 to 3 mph N | 0% |
| Wednesday Night | 60°F | Mostly Clear | 3 mph ENE | 0% |
| Thursday | 90°F | Sunny | 2 mph SSW | 0% |
| Thursday Night | 60°F | Mostly Clear | 2 mph SW | 0% |
| Friday | 87°F | Sunny | 2 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 3 mph WSW | 0% |
| Saturday | 83°F | Sunny | 2 mph WSW | 0% |
| Saturday Night | 56°F | Mostly Clear | 1 to 5 mph SW | 0% |
| Sunday | 78°F | Mostly Sunny | 2 mph W | 0% |
| Sunday Night | 55°F | Mostly Clear | 2 mph WSW | 0% |
| Monday | 77°F | Mostly Sunny | 2 mph W | 0% |
| Monday Night | 55°F | Partly Cloudy | 2 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bonney Lake (47.200, -122.163). Updated through the day.
Growing snapshot for Bonney Lake
Last spring frost
Apr 11
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
8b
More local growing data for Bonney Lake: nearby ZIP 98391 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Mcmillin Rsvr, Wa (5.1 mi from Bonney Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.