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Plymouth, Washington Weather Forecast
Plymouth, Washington Weather
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Weather Forecast for Plymouth, Washington : Benton County
Issued: 10:35 pm PST Dec 17, 2025 Latitude: 45.9345771 Longitude: -119.350296 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
30% chance of rain on Tonight 100% chance of rain on Thursday 50% chance of rain on Friday Sunny on Saturday 40% chance of rain on Sunday 20% chance of rain on Monday 10% chance of rain on Tuesday 20% chance of rain & snow on Wednesday
Low: 39°F High: 55°F High: 49°F High: 49°F High: 46°F High: 50°F High: 46°F High: 43°F
Low: 41°F Low: 34°F Low: 32°F Low: 34°F Low: 32°F Low: 31°F  
Rain Rain Rain Sunny Rain Rain Rain Rain & Snow
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Current Conditions at
HERMISTON - (KHRI)
39°
Clear
as of 9:53 PM PST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
6 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
PASCO - (KPSC)
45°
Feels like 39°F
Clear
as of 9:53 PM PST
Rel. Humidity: 65%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
PENDLETON - (KPDT)
39°
Clear
as of 9:53 PM PST
Rel. Humidity: 60%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
6 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
WALLA WALLA - (KALW)
43°
Clear
as of 9:53 PM PST
Rel. Humidity: 56%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
8 MPH
170° South
Cloud Level(s): Clear
30% chance of rain Tonight Tonight... A 30 percent chance of rain after 4am. Cloudy, with a low around 39. South wind 6 to 8 mph.
100% chance of rain Thursday Thursday... Rain, mainly after 7am. High near 55. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
90% chance of rain Thursday Night Thursday Night... Rain, mainly before 4am. Low around 41. Southwest wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
50% chance of rain Friday Friday... A 50 percent chance of rain, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 49. Southwest wind 10 to 14 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
20% chance of rain Friday Night Friday Night... A 20 percent chance of rain before 10pm. Mostly clear, with a low around 34. Southwest wind around 10 mph.
Sunny on Saturday Saturday... Sunny, with a high near 49.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 32.
40% chance of rain Sunday Sunday... A 40 percent chance of rain. Partly sunny, with a high near 46.
50% chance of rain Sunday Night Sunday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 34.
20% chance of rain Monday Monday... A chance of rain, mainly before 10am. Mostly sunny, with a high near 50.
10% chance of rain Monday Night Monday Night... A slight chance of rain. Partly cloudy, with a low around 32.
10% chance of rain Tuesday Tuesday... A slight chance of rain. Partly sunny, with a high near 46.
20% chance of rain Tuesday Night Tuesday Night... A chance of rain. Mostly cloudy, with a low around 31.
20% chance of rain & snow Wednesday Wednesday... A chance of rain and snow. Partly sunny, with a high near 43.
Current Radar Image


Sun Almanac for Plymouth, Washington
Sunrise: 07:35 AM
Sunset: 4:14 PM
Civil Sunrise:07:00 AM
Civil Sunset: 4:48 PM
Nautical Sunrise: 06:22 AM
Nautical Sunset: 5:26 PM
Astro Sunrise: 05:46 AM
Astro Sunset: 6:03 PM
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