Harman US

McChord AFB, WA Weather & Growing Conditions

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

WhenTempForecastWindPrecip
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). Updated through the day.

Growing snapshot for McChord AFB, WA

Last spring frost
Mar 8
First fall frost
Nov 14
Growing season
250 days
Hardiness zone
8b

Explore more for McChord AFB, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Tacoma #1, Wa (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.