McChord AFB, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McChord AFB, a community in Pierce County, Washington.
Today
59°F
Patchy Fog then Light Rain Likely
Patchy fog before 9am, then rain likely. Mostly cloudy. High near 59, with temperatures falling to around 55 in the afternoon. South southwest wind 0 to 9 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for McChord AFB
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Patchy Fog then Light Rain Likely | 0 to 9 mph SSW | 62% |
| Tonight | 45°F | Light Rain | 8 to 13 mph SSW | 92% |
| Thursday | 59°F | Mostly Sunny | 7 to 10 mph SSW | 11% |
| Thursday Night | 42°F | Mostly Cloudy then Light Rain Likely | 8 mph S | 64% |
| Friday | 57°F | Light Rain | 6 to 15 mph S | 80% |
| Friday Night | 45°F | Light Rain Likely | 0 to 6 mph SSE | 70% |
| Saturday | 63°F | Chance Light Rain | 2 mph S | 29% |
| Saturday Night | 49°F | Light Rain | 2 to 15 mph SSW | 81% |
| Sunday | 57°F | Light Rain Likely | 3 to 13 mph SSW | 60% |
| Sunday Night | 40°F | Slight Chance Light Rain | 3 mph SSE | 15% |
| Monday | 56°F | Chance Light Rain | 3 mph SSE | 38% |
| Monday Night | 45°F | Light Rain Likely | 6 mph S | 55% |
| Tuesday | 59°F | Light Rain Likely | 6 to 9 mph S | 55% |
| Tuesday Night | 46°F | Chance Light Rain | 2 to 6 mph SSE | 52% |
Forecast source: National Weather Service (api.weather.gov) for McChord AFB (47.133, -122.492). Updated through the day.
Growing snapshot for McChord AFB
Last spring frost
Mar 8
First fall frost
Nov 14
Growing season
250 days
Hardiness zone
8b
More local growing data for McChord AFB: nearby ZIP 98438 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Tacoma #1, Wa (8.6 mi from McChord AFB). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.