Historical weather data, all-time temperature records, and monthly climate averages for Federal Way, WA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Federal Way sits right in that transitional sweet spot — historically, you're looking at a 58° high and 41° low, with a coin-flip chance of rain at 51%. The date has seen some wild swings over the years, from a balmy 74° back in 2004 to a teeth-chattering 29° in 1982.
Federal Way doesn't mess around at the extremes — this corner of the South Sound hit a staggering 105° on June 27, 2021, and bottomed out at 5° on November 24, 1985. On the wet side, a single November day in 2011 dumped 4.73 inches of rain, and a January storm in 2007 buried the area under 6.5 inches of snow.
Summer is the clear sweet spot here — mid-July through late July averages a comfortable 78° high, while the last week of December bottoms out around 45°. If you're trying to dodge the rain, avoid mid-to-late November, which is the wettest stretch of the year at nearly 1.78 inches in a single week. Temperatures climb steadily from March through August, then taper off quickly into fall.