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Summit, Washington Weather Forecast
Summit, Washington Weather
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Weather Forecast for Summit, Washington : King County
Issued: 1:25 am PST Dec 16, 2025 Latitude: 47.3612122 Longitude: -122.020393 View on Google Maps

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Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
60% chance of rain on Overnight 100% chance of rain on Tuesday 90% chance of rain on Wednesday 100% chance of rain on Thursday Rain on Friday Rain on Saturday 70% chance of rain & snow on Sunday 70% chance of rain & snow on Monday
Low: 44°F High: 54°F High: 45°F High: 50°F High: 44°F High: 43°F High: 45°F High: 46°F
Low: 39°F Low: 39°F Low: 36°F Low: 36°F Low: 34°F Low: 38°F  
Rain Rain Rain Rain Rain Rain Rain & Snow Rain & Snow
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Current Conditions at
RENTON - (KRNT)
48°
Cloudy
as of 2:53 AM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 9 Miles
Pressure: 30.06 in.
Flight Rule: MVFR
Wind Data
5 MPH
100° East
Cloud Level(s): Few at 800ft, Broken at 1800ft, Solid Overcast at 2200ft
Current Conditions at
SEATTLE-TACOMA - (KSEA)
48°
Cloudy
as of 2:53 AM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 9 Miles
Pressure: 30.05 in.
Flight Rule: IFR
Wind Data
6 MPH
190° South
Cloud Level(s): Broken at 700ft, Solid Overcast at 1300ft
Current Conditions at
BOEING FIELD - (KBFI)
48°
Cloudy
as of 2:53 AM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 8 Miles
Pressure: 30.06 in.
Flight Rule: MVFR
Wind Data
5 MPH
170° South
Cloud Level(s): Scattered at 1500ft, Broken at 2000ft, Solid Overcast at 2500ft
Current Conditions at
PIERCE CNTY A/P - (KPLU)
48°
Cloudy
Light Drizzle
as of 3:15 AM PST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 2200ft
60% chance of rain Overnight Overnight... Rain likely, mainly after 4am. Mostly cloudy, with a low around 44. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain Tuesday Tuesday... Rain. Patchy fog after noon. High near 54. South southwest wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
100% chance of thunderstorms Tuesday Night Tuesday Night... Rain and possibly a thunderstorm before 1am, then rain likely. Patchy fog between 8pm and 11pm. Low around 39. Breezy, with a south southwest wind 20 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
90% chance of rain Wednesday Wednesday... Rain. High near 45. Southwest wind 9 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
90% chance of rain Wednesday Night Wednesday Night... Rain. Low around 39. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of rain Thursday Thursday... Rain. High near 50. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
90% chance of rain Thursday Night Thursday Night... Rain. Low around 36. Chance of precipitation is 90%.
Rain on Friday Friday... Rain. Cloudy, with a high near 44.
Rain on Friday Night Friday Night... Rain. Cloudy, with a low around 36.
Rain on Saturday Saturday... Rain. Cloudy, with a high near 43.
70% chance of rain & snow Saturday Night Saturday Night... Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34.
70% chance of rain & snow Sunday Sunday... Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 45.
Rain and Snow on Sunday Night Sunday Night... Rain, possibly mixed with snow. Mostly cloudy, with a low around 38.
70% chance of rain & snow Monday Monday... Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 46.
Current Radar Image


Sun Almanac for Summit, Washington
Sunrise: 07:50 AM
Sunset: 4:18 PM
Civil Sunrise:07:14 AM
Civil Sunset: 4:54 PM
Nautical Sunrise: 06:35 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:58 AM
Astro Sunset: 6:10 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.