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McKenna, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for McKenna, a community in Pierce County, Washington.

Today
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North northwest wind around 2 mph.

7-day forecast for McKenna

WhenTempForecastWindPrecip
Today 75°F Mostly Sunny 2 mph NNW 0%
Tonight 48°F Mostly Clear 2 mph N 0%
Sunday 76°F Mostly Sunny 0 to 3 mph N 0%
Sunday Night 47°F Partly Cloudy 2 mph N 0%
Monday 74°F Partly Sunny 2 mph NNW 0%
Monday Night 48°F Partly Cloudy 2 mph N 0%
Tuesday 72°F Partly Sunny 0 to 3 mph NW 0%
Tuesday Night 46°F Partly Cloudy 3 mph SW 4%
Wednesday 70°F Partly Sunny 5 mph WSW 5%
Wednesday Night 46°F Mostly Cloudy 0 to 5 mph W 5%
Thursday 66°F Mostly Cloudy then Slight Chance Light Rain 0 to 5 mph N 18%
Thursday Night 46°F Slight Chance Light Rain 1 to 5 mph NE 20%
Friday 65°F Partly Sunny 1 to 7 mph NE 14%
Friday Night 44°F Partly Cloudy 1 to 7 mph ENE 12%

Forecast source: National Weather Service (api.weather.gov) for McKenna (46.935, -122.550). Updated through the day.

Growing snapshot for McKenna

Last spring frost
Apr 29
First fall frost
Oct 14
Growing season
169 days

More local growing data for McKenna: nearby ZIP 98558 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Olympia Ap, Wa (16.4 mi from McKenna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.