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Upper Mill, Washington Weather Forecast
Upper Mill, Washington Weather
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Weather Forecast for Upper Mill, Washington : King County
Issued: 1:25 am PST Dec 15, 2025 Latitude: 47.1934357 Longitude: -121.9270538 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
90% chance of rain on Overnight 100% chance of thunderstorms on Monday 100% chance of rain on Tuesday 90% chance of rain on Wednesday Rain on Thursday Rain and Snow on Friday Rain and Snow on Saturday Rain and Snow on Sunday
Low: 52°F High: 57 °F High: 52°F High: 42°F High: 48°F High: 41°F High: 41°F High: 42°F
Low: 42°F Low: 36°F Low: 36°F Low: 35°F Low: 34°F Low: 33°F  
Rain Thunderstorms Rain Rain Rain Rain and Snow Rain and Snow Rain and Snow
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Current Conditions at
PIERCE CNTY A/P - (KPLU)
59°
Cloudy
as of 2:15 AM PST
Rel. Humidity: 67%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 24 MPH
180° South
Cloud Level(s): Broken at 3800ft, Solid Overcast at 6000ft
Current Conditions at
SEATTLE-TACOMA - (KSEA)
50°
Cloudy
Light Rain
as of 1:53 AM PST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3500ft
Current Conditions at
RENTON - (KRNT)
52°
Cloudy
as of 1:53 AM PST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 4000ft
Current Conditions at
STAMPEDE PASS - (KSMP)
39°
Cloudy
Light Rain Mist
as of 2:20 AM PST
Rel. Humidity: 100%
Dew Point: 39°F
Visibility: 1 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Broken at 2700ft, Broken at 3200ft, Solid Overcast at 4200ft
90% chance of rain Overnight Overnight... Rain. Steady temperature around 52. South wind 8 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of thunderstorms Monday Monday... Rain before 1pm, then showers and possibly a thunderstorm after 1pm. Temperature rising to near 57 by 11am, then falling to around 49 during the remainder of the day. West southwest wind 18 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
80% chance of thunderstorms Monday Night Monday Night... Rain and possibly a thunderstorm. Low around 42. South southwest wind 10 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
100% chance of rain Tuesday Tuesday... Rain. High near 52. Southwest wind 11 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
100% chance of rain Tuesday Night Tuesday Night... Rain. Low around 36. Breezy, with a southwest wind 21 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
90% chance of rain Wednesday Wednesday... Rain before 11am, then showers after 11am. High near 42. Breezy. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
90% chance of rain Wednesday Night Wednesday Night... Showers before 3am, then rain after 3am. Low around 36. Chance of precipitation is 90%.
Rain on Thursday Thursday... Rain. Cloudy, with a high near 48.
Rain and Snow on Thursday Night Thursday Night... Rain before 10pm, then rain, possibly mixed with snow. Cloudy, with a low around 35.
Rain and Snow on Friday Friday... Rain, possibly mixed with snow. Cloudy, with a high near 41.
Rain and Snow on Friday Night Friday Night... Rain, possibly mixed with snow. Cloudy, with a low around 34.
Rain and Snow on Saturday Saturday... Rain, possibly mixed with snow. Cloudy, with a high near 41.
Rain and Snow on Saturday Night Saturday Night... Rain, possibly mixed with snow. Mostly cloudy, with a low around 33.
Rain and Snow on Sunday Sunday... Rain and snow likely. Mostly cloudy, with a high near 42.
Current Radar Image


Sun Almanac for Upper Mill, Washington
Sunrise: 07:48 AM
Sunset: 4:18 PM
Civil Sunrise:07:12 AM
Civil Sunset: 4:54 PM
Nautical Sunrise: 06:33 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:56 AM
Astro Sunset: 6:10 PM
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