Sunday Lake, WA Weather & Growing Conditions
Overnight
52°F
Mostly Clear
Mostly clear, with a low around 52. Northwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Clear | 1 mph NW | 0% |
| Tuesday | 85°F | Sunny | 1 to 10 mph NW | 0% |
| Tuesday Night | 57°F | Patchy Smoke then Mostly Clear | 1 to 8 mph NNW | 0% |
| Wednesday | 88°F | Sunny then Patchy Smoke | 1 to 8 mph NW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 1 to 8 mph NNE | 0% |
| Thursday | 88°F | Sunny | 1 to 7 mph N | 0% |
| Thursday Night | 59°F | Mostly Clear | 1 to 7 mph W | 0% |
| Friday | 84°F | Sunny | 1 to 8 mph WSW | 0% |
| Friday Night | 57°F | Mostly Clear | 1 to 8 mph WNW | 0% |
| Saturday | 79°F | Sunny | 1 to 10 mph WNW | 0% |
| Saturday Night | 56°F | Partly Cloudy | 1 to 10 mph W | 0% |
| Sunday | 78°F | Mostly Sunny | 1 to 8 mph WSW | 0% |
| Sunday Night | 55°F | Mostly Clear | 2 to 8 mph WNW | 1% |
| Monday | 78°F | Mostly Sunny | 2 to 8 mph W | 1% |
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 Aug 4, 2026.