King County Airport (BFI) Weather 12/13/2025
Tonight
36
Slight Chance Rain
Monday
45
Chance Rain
Monday Night
40
Rain Likely
Tuesday
48
Chance Rain then Mostly Cloudy
Tuesday Night
38
Mostly Cloudy then Patchy Fog
Wednesday
45
Mostly Cloudy
Wednesday Night
39
Mostly Cloudy
Thursday
47
Chance Rain
Thursday Night
43
Rain Likely
Friday
53
Rain
Friday Night
46
Rain
Saturday
52
Rain
Saturday Night
45
Rain Likely
Weekly Forecast
Tonight
A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 36. Calm wind.
Monday
A slight chance of rain before 11am, then a chance of rain after 4pm. Mostly cloudy, with a high near 45. Calm wind. Chance of precipitation is 30%.
Monday Night
Rain likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 40. Light south southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 50 percent chance of rain before 10am. Mostly cloudy, with a high near 48. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 38. Calm wind.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A chance of rain. Cloudy, with a high near 47.
Thursday Night
Rain likely. Cloudy, with a low around 43.
Friday
Rain. Cloudy, with a high near 53.
Friday Night
Rain. Cloudy, with a low around 46.
Saturday
Rain. Mostly cloudy, with a high near 52.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.