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Dumas, Washington Weather Forecast
Dumas, Washington Weather
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Click for High Wind Warning for Dumas, Washington
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Weather Forecast for Dumas, Washington : Columbia County
Issued: 10:51 pm PST Dec 15, 2025 Latitude: 46.2870844 Longitude: -118.0613329 View on Google Maps

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Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
20% chance of rain on Tonight 40% chance of rain on Tuesday 70% chance of rain & snow on Wednesday 100% chance of rain on Thursday 70% chance of rain & snow on Friday 20% chance of rain & snow on Saturday 20% chance of rain & snow on Sunday 70% chance of rain & snow on Monday
Low: 45°F High: 59°F High: 51°F High: 53°F High: 47°F High: 45°F High: 46°F High: 48°F
Low: 38°F Low: 36°F Low: 40°F Low: 33°F Low: 32°F Low: 34°F  
Rain Rain Rain & Snow Rain Rain & Snow Rain & Snow Rain & Snow Rain & Snow
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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
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
PASCO - (KPSC)
57°
Clear
as of 10:53 PM PST
Rel. Humidity: 50%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
14 MPH
210° Southwest
Cloud Level(s): Clear
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
20% chance of rain Tonight Tonight... A slight chance of rain before 1am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 20 to 26 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
40% chance of rain Tuesday Tuesday... A 40 percent chance of rain, mainly between 7am and 1pm. Partly sunny, with a high near 59. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 28 mph.
100% chance of thunderstorms Tuesday Night Tuesday Night... Rain before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Low around 38. Windy, with a south wind 24 to 29 mph increasing to 31 to 36 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
70% chance of rain & snow Wednesday Wednesday... Rain likely, mainly before 10am. Snow level 2700 feet. Mostly sunny, with a high near 51. Windy, with a southwest wind 33 to 38 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
80% chance of rain Wednesday Night Wednesday Night... Rain, mainly after 4am. Low around 36. South wind 13 to 21 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain Thursday Thursday... Rain. High near 53. Chance of precipitation is 100%.
90% chance of rain Thursday Night Thursday Night... Rain. Low around 40. Breezy. Chance of precipitation is 90%.
70% chance of rain & snow Friday Friday... Rain likely, possibly mixed with snow, becoming all rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
40% chance of rain & snow Friday Night Friday Night... A chance of rain before 7pm, then a chance of rain and snow. Snow level 2700 feet lowering to 2200 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
20% chance of rain & snow Saturday Saturday... A chance of rain and snow before 1pm, then a chance of rain. Snow level 2000 feet rising to 2500 feet in the afternoon. Partly sunny, with a high near 45.
20% chance of rain & snow Saturday Night Saturday Night... A chance of rain and snow. Snow level 2500 feet. Mostly cloudy, with a low around 32.
20% chance of rain & snow Sunday Sunday... A chance of rain and snow. Snow level 2600 feet rising to 3400 feet in the afternoon. Partly sunny, with a high near 46.
20% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 34.
70% chance of rain & snow Monday Monday... Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 48.
Current Radar Image


Sun Almanac for Dumas, Washington
Sunrise: 07:30 AM
Sunset: 4:07 PM
Civil Sunrise:06:55 AM
Civil Sunset: 4:41 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 5:20 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 5:56 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.