Medical Lake, WA Weather & Growing Conditions
Today
85°F
Smoke then Haze
Smoke and haze before 10am, then haze and areas of smoke. Sunny, with a high near 85. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Smoke then Haze | 5 mph N | 0% |
| Tonight | 52°F | Haze | 3 mph NE | 0% |
| Wednesday | 90°F | Areas Of Smoke | 1 to 5 mph SE | 0% |
| Wednesday Night | 55°F | Areas Of Smoke | 5 mph S | 0% |
| Thursday | 94°F | Sunny | 3 to 9 mph S | 0% |
| Thursday Night | 59°F | Mostly Clear | 1 to 8 mph S | 0% |
| Friday | 94°F | Sunny | 3 to 12 mph SW | 0% |
| Friday Night | 58°F | Mostly Clear | 5 to 12 mph SW | 0% |
| Saturday | 92°F | Sunny | 6 to 13 mph SW | 0% |
| Saturday Night | 57°F | Mostly Clear | 7 to 13 mph SW | 0% |
| Sunday | 87°F | Sunny | 10 mph SW | 0% |
| Sunday Night | 56°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Monday | 88°F | Sunny | 5 to 8 mph S | 0% |
| Monday Night | 56°F | Mostly Clear | 3 to 7 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Medical Lake, WA
Last spring frost
May 31
First fall frost
Sep 12
Growing season
101 days
Hardiness zone
6b
Explore more for Medical Lake, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Harrington, Wa (14.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.