Medical Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Medical Lake, a city in Spokane County, Washington.
Today
77°F
Sunny
Sunny, with a high near 77. South wind around 2 mph.
7-day forecast for Medical Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 2 mph S | 0% |
| Tonight | 50°F | Mostly Clear | 1 mph S | 0% |
| Sunday | 80°F | Sunny | 3 mph SE | 0% |
| Sunday Night | 51°F | Mostly Clear | 2 mph E | 0% |
| Monday | 81°F | Sunny | 2 to 6 mph SE | 0% |
| Monday Night | 53°F | Partly Cloudy | 1 to 6 mph S | 0% |
| Tuesday | 77°F | Mostly Sunny | 1 to 7 mph S | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 2 to 6 mph S | 0% |
| Wednesday | 73°F | Mostly Sunny | 3 to 8 mph S | 0% |
| Wednesday Night | 49°F | Mostly Cloudy | 2 to 7 mph S | 1% |
| Thursday | 72°F | Mostly Sunny | 5 mph S | 3% |
| Thursday Night | 49°F | Mostly Cloudy | 3 mph NW | 9% |
| Friday | 68°F | Partly Sunny then Slight Chance Rain Showers | 6 mph SW | 15% |
| Friday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph SW | 15% |
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
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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 Sep 19, 2026.