Big Lake, WA Weather & Growing Conditions
Overnight
40°F
Mostly Clear
Mostly clear, with a low around 40. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Mostly Clear | 5 mph E | 1% |
| Wednesday | 55°F | Partly Sunny then Chance Light Rain | 3 to 13 mph SE | 25% |
| Wednesday Night | 44°F | Light Rain | 6 to 16 mph S | 96% |
| Thursday | 50°F | Slight Chance Light Rain then Partly Sunny | 6 to 9 mph S | 19% |
| Thursday Night | 44°F | Light Rain | 9 to 16 mph SE | 92% |
| Friday | 50°F | Light Rain | 8 to 16 mph SE | 92% |
| Friday Night | 45°F | Light Rain | 8 to 13 mph ESE | 75% |
| Saturday | 57°F | Chance Light Rain | 6 to 9 mph ESE | 34% |
| Saturday Night | 45°F | Rain | 7 to 20 mph SSE | 85% |
| Sunday | 50°F | Light Rain | 1 to 15 mph SSE | 85% |
| Sunday Night | 41°F | Chance Light Rain | 1 to 10 mph E | 26% |
| Monday | 51°F | Chance Light Rain | 5 to 8 mph E | 47% |
| Monday Night | 44°F | Light Rain Likely | 6 to 17 mph ESE | 65% |
| Tuesday | 52°F | Light Rain Likely | 10 to 16 mph SE | 65% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Big Lake, WA
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
8b
Explore more for Big Lake, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Arlington, Wa (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.