King County Airport (BFI) Weather 08/30/2025
Today
77
Sunny
Tonight
58
Clear
Friday
84
Sunny
Friday Night
64
Clear
Saturday
88
Sunny
Saturday Night
64
Partly Cloudy
Sunday
87
Mostly Sunny
Sunday Night
65
Mostly Clear
Monday
86
Sunny
Monday Night
63
Mostly Clear
Tuesday
84
Sunny
Tuesday Night
62
Mostly Clear
Wednesday
83
Mostly Sunny
Weekly Forecast
Today
Sunny, with a high near 77. North northwest wind around 9 mph.
Tonight
Clear, with a low around 58. North northeast wind 6 to 8 mph.
Friday
Sunny, with a high near 84. North northeast wind 6 to 9 mph.
Friday Night
Clear, with a low around 64. North northeast wind 6 to 9 mph.
Saturday
Sunny, with a high near 88. North wind 5 to 9 mph.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 83.