Loon Lake, WA Weather & Growing Conditions
Today
82°F
Sunny
Sunny, with a high near 82. Northwest wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 1 to 5 mph NW | 0% |
| Tonight | 54°F | Haze then Smoke | 0 to 3 mph N | 0% |
| Wednesday | 86°F | Areas Of Smoke | 1 to 6 mph SW | 0% |
| Wednesday Night | 57°F | Smoke then Mostly Clear | 0 to 6 mph E | 0% |
| Thursday | 91°F | Sunny | 1 to 7 mph S | 0% |
| Thursday Night | 61°F | Mostly Clear | 1 to 7 mph SE | 0% |
| Friday | 90°F | Sunny | 2 to 9 mph S | 0% |
| Friday Night | 59°F | Mostly Clear | 1 to 9 mph S | 0% |
| Saturday | 87°F | Sunny | 1 to 9 mph S | 0% |
| Saturday Night | 58°F | Mostly Clear | 2 to 9 mph S | 0% |
| Sunday | 84°F | Sunny | 2 to 7 mph S | 0% |
| Sunday Night | 56°F | Mostly Clear | 2 to 7 mph W | 0% |
| Monday | 83°F | Sunny | 2 to 6 mph S | 0% |
| Monday Night | 55°F | Mostly Clear | 1 to 6 mph E | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Loon Lake, WA
Last spring frost
May 22
First fall frost
Sep 14
Growing season
112 days
Hardiness zone
6a
Explore more for Loon Lake, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Deer Park Ap, Wa (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.