Medical Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Medical Lake, a city in Spokane County, Washington.
Overnight
50°F
Areas Of Smoke
Areas of smoke before 5am, then haze and areas of smoke. Mostly clear, with a low around 50. North wind around 2 mph.
7-day forecast for Medical Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Areas Of Smoke | 2 mph N | 0% |
| Tuesday | 84°F | Smoke then Haze | 5 mph N | 0% |
| Tuesday Night | 54°F | Areas Of Smoke then Haze | 0 to 3 mph N | 0% |
| Wednesday | 90°F | Areas Of Smoke | 0 to 3 mph SE | 0% |
| Wednesday Night | 56°F | Patchy Smoke then Mostly Clear | 3 mph S | 0% |
| Thursday | 94°F | Sunny | 1 to 8 mph S | 0% |
| Thursday Night | 61°F | Mostly Clear | 2 to 8 mph S | 0% |
| Friday | 93°F | Sunny | 3 to 13 mph SW | 0% |
| Friday Night | 61°F | Mostly Clear | 6 to 13 mph SW | 0% |
| Saturday | 89°F | Sunny | 7 to 12 mph SW | 0% |
| Saturday Night | 59°F | Mostly Clear | 6 to 12 mph SW | 0% |
| Sunday | 85°F | Sunny | 10 mph SW | 0% |
| Sunday Night | 56°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Monday | 84°F | Sunny | 8 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Medical Lake (47.571, -117.689). Updated through the day.
Growing snapshot for Medical Lake
Last spring frost
May 10
First fall frost
Sep 26
Growing season
137 days
Hardiness zone
6b
More local growing data for Medical Lake: nearby ZIP 99022 weather · frost dates · planting calendar · Washington frost dates
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Town and Country
Waverly
Climate data from the nearest NOAA station, Spokane Wfo, Wa (6.8 mi from Medical Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.