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Sunnyside, Washington Weather Forecast
Sunnyside, Washington Weather
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Click for Flood Watch for Sunnyside, Washington
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Weather Forecast for Sunnyside, Washington : Clark County
Issued: 5:41 pm PST Dec 15, 2025 Latitude: 45.6437287 Longitude: -122.3720367 View on Google Maps

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This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
70% chance of thunderstorms on This Afternoon 80% chance of thunderstorms on Tonight 80% chance of rain on Tuesday 100% chance of rain on Wednesday 100% chance of rain on Thursday Rain on Friday 70% chance of rain & snow on Saturday 70% chance of rain on Sunday 70% chance of rain on Monday
High: 55°F Low: 48°F High: 57°F High: 48°F High: 53°F High: 46°F High: 45°F High: 47°F High: 48°F
Low: 41°F Low: 40°F Low: 40°F Low: 38°F Low: 37°F Low: 37°F  
Thunderstorms Thunderstorms Rain Rain Rain Rain Rain & Snow Rain Rain
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Current Conditions at
TROUTDALE - (KTTD)
59°
Cloudy
as of 4:53 PM PST
Rel. Humidity: 77%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
6 MPH
230° Southwest
Cloud Level(s): Broken at 7000ft, Solid Overcast at 9000ft
Current Conditions at
PORTLAND - (KPDX)
59°
Mostly Cloudy
as of 4:53 PM PST
Rel. Humidity: 77%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
9 MPH
200° South
Cloud Level(s): Scattered at 2200ft, Broken at 5500ft, Broken at 25000ft
Current Conditions at
VANCOUVER - (KVUO)
61°
Partly Cloudy
as of 4:53 PM PST
Rel. Humidity: 63%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
7 MPH
Cloud Level(s): Scattered at 6000ft
Current Conditions at
AURORA STATE - (KUAO)
57°
Partly Cloudy
as of 4:53 PM PST
Rel. Humidity: 82%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
10 MPH
220° Southwest
Cloud Level(s): Scattered at 3500ft
70% chance of thunderstorms This Afternoon This Afternoon... Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 55. Breezy, with a southwest wind around 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
80% chance of thunderstorms Tonight Tonight... Rain and thunderstorms likely, then rain after 1am. Low around 48. Southwest wind 7 to 11 mph becoming west northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
80% chance of rain Tuesday Tuesday... Rain. High near 57. Breezy, with a south southwest wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
100% chance of thunderstorms Tuesday Night Tuesday Night... Rain and possibly a thunderstorm before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Low around 41. Very windy, with a west southwest wind 24 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
100% chance of rain Wednesday Wednesday... Rain. High near 48. Windy, with a southwest wind 18 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
90% chance of rain Wednesday Night Wednesday Night... Rain. Low around 40. Chance of precipitation is 90%.
100% chance of rain Thursday Thursday... Rain. The rain could be heavy at times. High near 53. Breezy. Chance of precipitation is 100%.
Rain on Thursday Night Thursday Night... Rain. Cloudy, with a low around 40. Breezy.
Rain on Friday Friday... Rain. Mostly cloudy, with a high near 46.
70% chance of rain & snow Friday Night Friday Night... Rain likely. Snow level 2400 feet. Mostly cloudy, with a low around 38.
70% chance of rain & snow Saturday Saturday... Rain likely. Snow level 2500 feet. Mostly cloudy, with a high near 45.
70% chance of rain Saturday Night Saturday Night... Rain likely. Mostly cloudy, with a low around 37.
70% chance of rain Sunday Sunday... Rain likely. Mostly cloudy, with a high near 47.
70% chance of rain Sunday Night Sunday Night... Rain likely. Mostly cloudy, with a low around 37.
70% chance of rain Monday Monday... Rain likely. Mostly cloudy, with a high near 48.
Current Radar Image


Sun Almanac for Sunnyside, Washington
Sunrise: 07:44 AM
Sunset: 4:26 PM
Civil Sunrise:07:09 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 06:32 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:56 AM
Astro Sunset: 6:14 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.