Federal Way, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Federal Way, a city in King County, Washington.
Today
59°F
Mostly Cloudy then Chance Light Rain
A chance of rain after 4pm. Mostly cloudy. High near 59, with temperatures falling to around 54 in the afternoon. South wind 2 to 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Federal Way
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Mostly Cloudy then Chance Light Rain | 2 to 7 mph S | 49% |
| Tonight | 47°F | Light Rain | 7 to 13 mph SSW | 94% |
| Thursday | 59°F | Mostly Sunny | 6 to 10 mph SSW | 8% |
| Thursday Night | 44°F | Mostly Cloudy then Light Rain Likely | 7 mph S | 59% |
| Friday | 57°F | Light Rain | 5 to 13 mph SSE | 80% |
| Friday Night | 47°F | Light Rain Likely | 5 mph SSE | 71% |
| Saturday | 63°F | Chance Light Rain | 2 mph SSE | 29% |
| Saturday Night | 49°F | Light Rain | 2 to 15 mph SSW | 82% |
| Sunday | 57°F | Light Rain Likely | 5 to 13 mph SSW | 65% |
| Sunday Night | 42°F | Slight Chance Light Rain | 5 mph SE | 15% |
| Monday | 56°F | Chance Light Rain | 3 mph SSE | 39% |
| Monday Night | 46°F | Light Rain Likely | 2 to 8 mph SSE | 56% |
| Tuesday | 59°F | Light Rain Likely | 5 to 9 mph S | 56% |
| Tuesday Night | 47°F | Chance Light Rain | 6 mph SSE | 52% |
Forecast source: National Weather Service (api.weather.gov) for Federal Way (47.312, -122.338). Updated through the day.
Growing snapshot for Federal Way
Last spring frost
Mar 8
First fall frost
Nov 14
Growing season
250 days
Hardiness zone
8b
More local growing data for Federal Way: nearby ZIP 98003 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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Bryn Mawr-Skyway
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Clyde Hill
Cottage Lake
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Des Moines
Duvall
East Renton Highlands
Fairwood
Fall City
Greenwater
High Bridge
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Hunts Point
Index
Issaquah
Kenmore
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Kirkland
Lake Forest Park
Climate data from the nearest NOAA station, Tacoma #1, Wa (6.1 mi from Federal Way). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.