Sunday Lake, WA Weather & Growing Conditions
This Afternoon
56°F
Mostly Cloudy
Mostly cloudy. High near 56, with temperatures falling to around 51 in the afternoon. Northwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Mostly Cloudy | 3 mph NW | 5% |
| Tonight | 38°F | Patchy Fog | 0 to 3 mph NNE | 4% |
| Wednesday | 59°F | Mostly Sunny then Slight Chance Light Rain | 3 to 10 mph ESE | 18% |
| Wednesday Night | 47°F | Light Rain | 5 to 15 mph SE | 94% |
| Thursday | 57°F | Chance Light Rain | 5 to 9 mph SSE | 34% |
| Thursday Night | 46°F | Light Rain | 9 to 16 mph SE | 84% |
| Friday | 57°F | Light Rain | 9 to 16 mph SE | 84% |
| Friday Night | 46°F | Chance Light Rain | 5 to 9 mph SE | 39% |
| Saturday | 62°F | Chance Light Rain | 5 to 10 mph SE | 36% |
| Saturday Night | 49°F | Light Rain | 10 to 21 mph SSE | 79% |
| Sunday | 57°F | Light Rain | 5 to 15 mph S | 79% |
| Sunday Night | 43°F | Chance Light Rain | 7 mph SE | 32% |
| Monday | 56°F | Light Rain Likely | 5 to 10 mph SE | 55% |
| Monday Night | 46°F | Light Rain Likely | 10 to 18 mph SE | 71% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sunday Lake, WA
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
8b
Explore more for Sunday Lake, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Arlington, Wa (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.