Bonney Lake, WA Weather & Growing Conditions
This Afternoon
58°F
Partly Sunny
Partly sunny. High near 58, with temperatures falling to around 53 in the afternoon. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Partly Sunny | 0 mph | 4% |
| Tonight | 39°F | Partly Cloudy | 1 mph SE | 4% |
| Wednesday | 58°F | Patchy Fog then Slight Chance Light Rain | 1 mph SSW | 18% |
| Wednesday Night | 46°F | Light Rain | 0 to 7 mph S | 93% |
| Thursday | 57°F | Chance Light Rain then Partly Sunny | 1 to 6 mph SSW | 26% |
| Thursday Night | 45°F | Light Rain | 3 mph SSE | 77% |
| Friday | 57°F | Light Rain | 1 to 5 mph S | 77% |
| Friday Night | 45°F | Chance Light Rain | 2 mph SSE | 43% |
| Saturday | 62°F | Chance Light Rain | 2 mph SSE | 26% |
| Saturday Night | 48°F | Rain | 0 to 10 mph S | 77% |
| Sunday | 57°F | Light Rain | 1 to 10 mph SSW | 77% |
| Sunday Night | 42°F | Slight Chance Light Rain | 2 mph SE | 22% |
| Monday | 57°F | Chance Light Rain | 2 mph SE | 49% |
| Monday Night | 46°F | Light Rain Likely | 1 to 6 mph SSE | 68% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bonney Lake, WA
Last spring frost
Apr 11
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
8b
Explore more for Bonney Lake, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Mcmillin Rsvr, Wa (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.