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Mentor, Washington Weather Forecast
Mentor, Washington Weather
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Click for High Wind Warning for Mentor, Washington
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Weather Forecast for Mentor, Washington : Garfield County
Issued: 11:03 pm PST Dec 15, 2025 Latitude: 46.4590431 Longitude: -117.4726809 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Cloudy on Tonight 30% chance of rain on Tuesday 60% chance of rain & snow on Wednesday 90% chance of rain & snow on Thursday 70% chance of snow on Friday 40% chance of rain & snow on Saturday 40% chance of rain & snow on Sunday 60% chance of rain & snow on Monday
Low: 43°F High: 54°F High: 46°F High: 47°F High: 42°F High: 40°F High: 40°F High: 45°F
Low: 37°F Low: 34°F Low: 38°F Low: 31°F Low: 30°F Low: 34°F  
Mostly Cloudy Rain Rain & Snow Rain & Snow Snow Rain & Snow Rain & Snow Rain & Snow
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Current Conditions at
LEWISTON - (KLWS)
57°
Mostly Cloudy
as of 10:56 PM PST
Rel. Humidity: 50%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 7500ft, Broken at 10000ft
Current Conditions at
PULLMAN - (KPUW)
48°
Feels like 42°F
Clear
as of 10:53 PM PST
Rel. Humidity: 70%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 33 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
WALLA WALLA - (KALW)
55°
Cloudy
as of 10:53 PM PST
Rel. Humidity: 66%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
14 MPH
190° South
Cloud Level(s): Broken at 7500ft, Solid Overcast at 10000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 43. Windy, with a west wind 26 to 32 mph, with gusts as high as 46 mph.
30% chance of rain Tuesday Tuesday... A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 54. Breezy, with a west wind 18 to 22 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain Tuesday Night Tuesday Night... Rain, mainly after 10pm. Low around 37. Very windy, with a southwest wind 18 to 28 mph increasing to 29 to 39 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
60% chance of rain & snow Wednesday Wednesday... Rain likely, possibly mixing with snow after 10am, then gradually ending. Mostly cloudy, then gradually becoming sunny, with a high near 46. Very windy, with a west wind 43 to 48 mph decreasing to 34 to 39 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
60% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow likely, mainly after 4am. Mostly cloudy, with a low around 34. Windy, with a south wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
90% chance of rain & snow Thursday Thursday... Rain, possibly mixed with snow, becoming all rain after 1pm. High near 47. Chance of precipitation is 90%. Little or no snow accumulation expected.
90% chance of rain & snow Thursday Night Thursday Night... Rain before 4am, then rain, possibly mixed with snow. Low around 38. Windy. Chance of precipitation is 90%. Little or no snow accumulation expected.
70% chance of snow Friday Friday... Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 42. Windy. Chance of precipitation is 70%.
40% chance of rain & snow Friday Night Friday Night... A chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 31. Breezy. Chance of precipitation is 40%.
40% chance of rain & snow Saturday Saturday... A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 40. Breezy. Chance of precipitation is 40%.
40% chance of rain & snow Saturday Night Saturday Night... A chance of rain and snow. Mostly cloudy, with a low around 30. Breezy. Chance of precipitation is 40%.
40% chance of rain & snow Sunday Sunday... A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 40%.
50% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
60% chance of rain & snow Monday Monday... Rain and snow likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Sun Almanac for Mentor, Washington
Sunrise: 07:28 AM
Sunset: 4:04 PM
Civil Sunrise:06:53 AM
Civil Sunset: 4:39 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:17 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 5:54 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.