McKenna, WA Weather & Growing Conditions
This Afternoon
61°F
Light Rain Likely
Rain likely after 4pm. Mostly cloudy. High near 61, with temperatures falling to around 56 in the afternoon. Southwest wind 1 to 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Light Rain Likely | 1 to 5 mph SW | 65% |
| Tonight | 45°F | Light Rain | 3 to 10 mph S | 92% |
| Thursday | 58°F | Partly Sunny | 1 to 5 mph SSW | 8% |
| Thursday Night | 43°F | Mostly Cloudy then Chance Light Rain | 1 to 5 mph SSE | 50% |
| Friday | 57°F | Light Rain | 3 to 15 mph S | 85% |
| Friday Night | 47°F | Light Rain Likely | 2 to 10 mph SSE | 71% |
| Saturday | 67°F | Mostly Cloudy then Chance Light Rain | 2 mph SE | 28% |
| Saturday Night | 48°F | Light Rain | 0 to 16 mph S | 86% |
| Sunday | 57°F | Light Rain Likely | 0 to 10 mph SW | 74% |
| Sunday Night | 38°F | Mostly Cloudy | 1 mph E | 7% |
| Monday | 58°F | Partly Sunny then Slight Chance Light Rain | 1 mph S | 20% |
| Monday Night | 45°F | Chance Light Rain | 1 to 14 mph S | 54% |
| Tuesday | 58°F | Light Rain Likely | 12 to 16 mph S | 63% |
| Tuesday Night | 47°F | Light Rain Likely | 6 to 15 mph S | 61% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for McKenna, WA
Last spring frost
Apr 29
First fall frost
Oct 14
Growing season
169 days
Hardiness zone
8b
Explore more for McKenna, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Olympia Ap, Wa (21.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.