Dayton, Washington Weather
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Weather Forecast for Dayton, Washington : Columbia County
Issued: 5:27 am PDT May 12, 2025 Latitude: 46.3237525 Longitude: -117.9724367 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
70% chance of thunderstorms on Today 40% chance of thunderstorms on Tonight 40% chance of on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday 40% chance of rain on Friday Thunderstorms on Saturday 20% chance of rain on Sunday
High: 60°F Low: 43°F High: 61°F High: 64°F High: 66°F High: 64°F High: 65°F High: 67°F
Low: 44°F Low: 42°F Low: 46°F Low: 46°F Low: 44°F  
Thunderstorms Thunderstorms Partly Sunny Partly Sunny Mostly Sunny Rain Thunderstorms Rain
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Current Conditions at
WALLA WALLA - (KALW)
50°
Clear
as of 6:53 AM PDST
Rel. Humidity: 76%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
3 MPH
100° East
Cloud Level(s): Clear
Current Conditions at
LEWISTON - (KLWS)
46°
Cloudy
Mist
as of 7:12 AM PDST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 3 Miles
Pressure: 29.71 in.
Flight Rule: IFR
Wind Data
3 MPH
100° East
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
PULLMAN - (KPUW)
45°
Clear
as of 6:53 AM PDST
Rel. Humidity: 87%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
6 MPH
090° East
Cloud Level(s): Clear
Current Conditions at
MEACHAM - (KMEH)
37°
Cloudy
as of 7:31 AM PDST
Rel. Humidity: 93%
Dew Point: 36°F
Pressure: 29.70 in.
Wind Data
Calm
Cloud Level(s): Broken at 2500ft, Broken at 3900ft, Solid Overcast at 7000ft
70% chance of thunderstorms Today Today... Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 60. Southwest wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
40% chance of thunderstorms Tonight Tonight... A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. Southwest wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
40% chance of Tuesday Tuesday... A 40 percent chance of showers. Partly sunny, with a high near 61. Southwest wind 13 to 16 mph, with gusts as high as 21 mph.
20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of showers. Mostly cloudy, with a low around 44. South wind 10 to 14 mph, with gusts as high as 20 mph.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 64. Breezy, with a southwest wind 17 to 23 mph, with gusts as high as 28 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 42.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 66.
20% chance of rain Thursday Night Thursday Night... A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 46.
40% chance of rain Friday Friday... A 40 percent chance of showers. Mostly cloudy, with a high near 64.
20% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 46.
Thunderstorms on Saturday Saturday... Showers likely and possibly a thunderstorm. Partly sunny, with a high near 65.
20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 44.
20% chance of rain Sunday Sunday... A chance of showers. Mostly sunny, with a high near 67.
Current Radar Image


Sun Almanac for Dayton, Washington
Sunrise: 05:21 AM
Sunset: 8:15 PM
Civil Sunrise:04:46 AM
Civil Sunset: 8:50 PM
Nautical Sunrise: 04:02 AM
Nautical Sunset: 9:35 PM
Astro Sunrise: 03:08 AM
Astro Sunset: 10:28 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.