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Stimson, Washington Weather Forecast
Stimson, Washington Weather
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Click for Special Weather Statement for Stimson, Washington
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Weather Forecast for Stimson, Washington : Mason County
Issued: 1:25 pm PST Dec 16, 2025 Latitude: 47.0903729 Longitude: -123.2318192 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
100% chance of thunderstorms on This Afternoon 100% chance of thunderstorms on Tonight 80% chance of rain on Wednesday 100% chance of rain on Thursday 90% chance of thunderstorms on Friday Rain on Saturday Rain on Sunday Rain on Monday
High: 54°F Low: 38°F High: 47°F High: 51°F High: 45°F High: 44°F High: 45°F High: 46°F
Low: 38°F Low: 36°F Low: 35°F Low: 36°F Low: 37°F  
Thunderstorms Thunderstorms Rain Rain Thunderstorms Rain Rain Rain
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Current Conditions at
SHELTON - (KSHN)
54°
Cloudy
Light Rain Mist
as of 2:38 PM PST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 5 Miles
Pressure: 29.73 in.
Flight Rule: MVFR
Wind Data
9 MPH
180° South
Cloud Level(s): Few at 1500ft, Broken at 2000ft, Solid Overcast at 5000ft
Current Conditions at
OLYMPIA - (KOLM)
54°
Cloudy
Light Rain
as of 1:54 PM PST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
9 MPH
200° South
Cloud Level(s): Scattered at 3300ft, Broken at 4200ft, Solid Overcast at 5000ft
Current Conditions at
FORT LEWIS - (KGRF)
54°
Partly Cloudy
Light Rain
as of 1:55 PM PST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 6 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
12 MPH
160° South
Cloud Level(s): Scattered at 3900ft
100% chance of thunderstorms This Afternoon This Afternoon... Showers and possibly a thunderstorm. High near 54. South southwest wind around 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
100% chance of thunderstorms Tonight Tonight... Rain and possibly a thunderstorm before 4am, then rain likely. Low around 38. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
80% chance of rain Wednesday Wednesday... Rain. High near 47. West southwest wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of rain Wednesday Night Wednesday Night... Rain. Low around 38. South wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
100% chance of rain Thursday Thursday... Rain. High near 51. South southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
90% chance of rain Thursday Night Thursday Night... Rain. Low around 36. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
90% chance of thunderstorms Friday Friday... Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 45. Chance of precipitation is 90%.
Rain on Friday Night Friday Night... Rain. Cloudy, with a low around 35.
Rain on Saturday Saturday... Rain. Cloudy, with a high near 44.
70% chance of rain Saturday Night Saturday Night... Rain likely. Mostly cloudy, with a low around 36.
Rain on Sunday Sunday... Rain. Mostly cloudy, with a high near 45.
Rain on Sunday Night Sunday Night... Rain. Cloudy, with a low around 37.
Rain on Monday Monday... Rain. Mostly cloudy, with a high near 46.
Sun Almanac for Stimson, Washington
Sunrise: 07:54 AM
Sunset: 4:24 PM
Civil Sunrise:07:18 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 06:39 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 06:02 AM
Astro Sunset: 6:16 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.