url:
Kosmos, Washington Weather Forecast
Kosmos, Washington Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

Change location by the zip code or city,state: or search for other weather forecast locations in Washington by name.
Weather Forecast for Kosmos, Washington : Lewis County
Issued: 1:25 am PST Dec 15, 2025 Latitude: 46.4978879 Longitude: -122.1878774 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 100% chance of rain & snow 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: 53°F High: 43°F High: 47°F High: 43°F High: 42°F High: 43°F
Low: 45°F Low: 39°F Low: 39°F Low: 39°F Low: 37°F Low: 37°F  
Rain Thunderstorms Rain Rain & Snow Rain Rain and Snow Rain and Snow Rain and Snow
-
Current Conditions at
CHEHALIS-CENTRALIA - (KCLS)
54°
Cloudy
as of 2:15 AM PST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
14 MPH
Gust: 21 MPH
160° South
Cloud Level(s): Broken at 3000ft, Solid Overcast at 3400ft
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
KELSO - (KKLS)
54°
Cloudy
as of 1:56 AM PST
Rel. Humidity: 81%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 24 MPH
140° Southeast
Cloud Level(s): Broken at 4300ft, Solid Overcast at 6500ft
Current Conditions at
FORT LEWIS - (KGRF)
55°
Cloudy
as of 1:55 AM PST
Rel. Humidity: 82%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
8 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 3300ft
90% chance of rain Overnight Overnight... Rain. Steady temperature around 52. East wind 11 to 18 mph, with gusts as high as 31 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, mainly after 1pm. High near 57. South wind 17 to 21 mph becoming west southwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

90% chance of thunderstorms Monday Night Monday Night... Rain and thunderstorms likely, then rain after 2am. Low around 45. West southwest wind 9 to 16 mph becoming south southeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

100% chance of rain Tuesday Tuesday... Rain. High near 53. Southwest wind around 13 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

100% chance of rain & snow Tuesday Night Tuesday Night... Rain before 4am, then rain, possibly mixed with snow. Low around 39. Windy, with a west southwest wind 24 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

100% chance of rain & snow Wednesday Wednesday... Rain, possibly mixed with snow showers, becoming all rain after 10am. High near 43. Windy. Chance of precipitation is 100%. Little or no snow accumulation expected.

90% chance of rain Wednesday Night Wednesday Night... Showers before 3am, then rain after 3am. Low around 39. Chance of precipitation is 90%.

Rain on Thursday Thursday... Rain. Cloudy, with a high near 47.

Rain and Snow on Thursday Night Thursday Night... Rain before 10pm, then rain, possibly mixed with snow. Cloudy, with a low around 39.

Rain and Snow on Friday Friday... Rain and snow. Cloudy, with a high near 43.

Snow on Friday Night Friday Night... Snow. Cloudy, with a low around 37.

Rain and Snow on Saturday Saturday... Rain and snow. Cloudy, with a high near 42.

Rain and Snow on Saturday Night Saturday Night... Rain and snow. Cloudy, with a low around 37.

Rain and Snow on Sunday Sunday... Rain and snow. Mostly cloudy, with a high near 43.

Current Radar Image


Sun Almanac for Kosmos, Washington
Sunrise: 07:46 AM
Sunset: 4:22 PM
Civil Sunrise:07:11 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 06:33 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:56 AM
Astro Sunset: 6:12 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.