Liberty Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Liberty Lake, a city in Spokane County, Washington.
Today
84°F
Haze
Haze and areas of smoke. Sunny, with a high near 84. North wind 1 to 6 mph.
7-day forecast for Liberty Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Haze | 1 to 6 mph N | 0% |
| Tonight | 53°F | Haze | 0 to 3 mph NE | 0% |
| Wednesday | 90°F | Smoke | 1 to 5 mph NE | 0% |
| Wednesday Night | 56°F | Smoke then Mostly Clear | 3 mph E | 0% |
| Thursday | 95°F | Sunny | 1 to 7 mph S | 0% |
| Thursday Night | 60°F | Mostly Clear | 2 to 6 mph S | 0% |
| Friday | 94°F | Sunny | 2 to 12 mph S | 0% |
| Friday Night | 59°F | Mostly Clear | 5 to 12 mph SW | 0% |
| Saturday | 91°F | Sunny | 6 to 10 mph SW | 0% |
| Saturday Night | 58°F | Mostly Clear | 5 to 10 mph S | 0% |
| Sunday | 87°F | Sunny | 6 to 9 mph SW | 0% |
| Sunday Night | 55°F | Mostly Clear | 3 to 8 mph S | 0% |
| Monday | 86°F | Sunny | 3 to 7 mph S | 0% |
| Monday Night | 55°F | Mostly Clear | 2 to 6 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Liberty Lake (47.668, -117.104). Updated through the day.
Growing snapshot for Liberty Lake
Last spring frost
Apr 26
First fall frost
Oct 15
Growing season
170 days
Hardiness zone
6b
More local growing data for Liberty Lake: nearby ZIP 99019 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 Felts Fld, Wa (11.9 mi from Liberty Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.