National Weather Service Forecast for: Federal Way WA
Issued by: National Weather Service Seattle, WA
Updated: 11:26 am PDT Sep 12, 2026
 
This
Afternoon
This Afternoon: A 10 percent chance of rain after 5pm. Mostly cloudy, with a high near 71. Light west wind.
Slight Chance
Rain
 Tonight

Tonight: Rain, mainly after 9pm. Low around 52. Calm wind becoming south southwest 5 to 7 mph in the evening. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain Likely
then Rain
 Sunday

Sunday: Rain, mainly before 11am. High near 64. South southwest wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain then
Chance Rain
 Sunday
Night
Sunday Night: Cloudy, with a low around 53. South southwest wind around 10 mph, with gusts as high as 21 mph.
Cloudy
 Monday

Monday: Mostly cloudy, with a high near 70. Southwest wind around 7 mph.
Mostly Cloudy
 Monday
Night
Monday Night: Mostly cloudy, with a low around 51.
Mostly Cloudy
 Tuesday

Tuesday: Mostly sunny, with a high near 71.
Mostly Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 51.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 75.
Sunny
Hi 71 °F Lo 52 °F Hi 64 °F Lo 53 °F Hi 70 °F Lo 51 °F Hi 71 °F Lo 51 °F Hi 75 °F

 

This Afternoon
 
 A 10 percent chance of rain after 5pm. Mostly cloudy, with a high near 71. Light west wind.
Tonight
 
 Rain, mainly after 9pm. Low around 52. Calm wind becoming south southwest 5 to 7 mph in the evening. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
 
 Rain, mainly before 11am. High near 64. South southwest wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
 
 Cloudy, with a low around 53. South southwest wind around 10 mph, with gusts as high as 21 mph.
Monday
 
 Mostly cloudy, with a high near 70. Southwest wind around 7 mph.
Monday Night
 
 Mostly cloudy, with a low around 51.
Tuesday
 
 Mostly sunny, with a high near 71.
Tuesday Night
 
 Mostly clear, with a low around 51.
Wednesday
 
 Sunny, with a high near 75.
Wednesday Night
 
 Clear, with a low around 53.
Thursday
 
 Sunny, with a high near 78.
Thursday Night
 
 Mostly clear, with a low around 54.
Friday
 
 Sunny, with a high near 79.
Friday Night
 
 Mostly clear, with a low around 55.
Saturday
 
 Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Federal Way WA.