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Union Gap, Washington Weather Forecast
Union Gap, Washington Weather
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Weather Forecast for Union Gap, Washington : Yakima County
Issued: 3:42 am PST Dec 15, 2025 Latitude: 46.5573492 Longitude: -120.4750638 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
70% chance of rain on Overnight 60% chance of rain on Monday 60% chance of rain on Tuesday 30% chance of rain on Wednesday 90% chance of rain on Thursday 20% chance of rain & snow on Friday 20% chance of rain & snow on Saturday 10% chance of rain & snow on Sunday
Low: 44°F High: 64°F High: 57°F High: 50°F High: 44°F High: 46°F High: 44°F High: 42°F
Low: 37°F Low: 38°F Low: 33°F Low: 32°F Low: 27°F Low: 27°F  
Rain Rain Rain Rain Rain Rain & Snow Rain & Snow Rain & Snow
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Current Conditions at
YAKIMA - (KYKM)
41°
Cloudy
Light Rain
as of 2:53 AM PST
Rel. Humidity: 93%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 6000ft, Solid Overcast at 9500ft
Current Conditions at
ELLENSBURG - (KELN)
37°
Mostly Cloudy
as of 2:53 AM PST
Rel. Humidity: 100%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
5 MPH
180° South
Cloud Level(s): Broken at 7000ft, Broken at 9500ft, Broken at 12000ft
Current Conditions at
WENATCHEE - (KEAT)
39°
Cloudy
Mist
as of 3:18 AM PST
Rel. Humidity: 100%
Dew Point: 39°F
Visibility: 3 Miles
Pressure: 29.96 in.
Flight Rule: MVFR
Wind Data
5 MPH
070° East
Cloud Level(s): Few at 600ft, Broken at 8500ft, Solid Overcast at 11000ft
Current Conditions at
STAMPEDE PASS - (KSMP)
39°
Cloudy
Light Rain Mist
as of 3:38 AM PST
Rel. Humidity: 100%
Dew Point: 39°F
Visibility: 1 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Scattered at 2200ft, Broken at 2800ft, Solid Overcast at 3600ft
70% chance of rain Overnight Overnight... Rain likely. Cloudy, with a steady temperature around 44. Southeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

60% chance of rain Monday Monday... Rain likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 64. Southeast wind 6 to 11 mph becoming southwest 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

20% chance of rain Monday Night Monday Night... A 20 percent chance of rain after 1am. Partly cloudy, with a low around 37. West wind 5 to 13 mph becoming southeast after midnight. Winds could gust as high as 30 mph.

60% chance of rain Tuesday Tuesday... Rain likely, mainly after 4pm. Mostly sunny, with a high near 57. Southwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

90% chance of rain Tuesday Night Tuesday Night... Rain, mainly before 4am. Low around 38. Southwest wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

30% chance of rain Wednesday Wednesday... A 30 percent chance of rain before 10am. Mostly sunny, with a high near 50.

60% chance of rain Wednesday Night Wednesday Night... Rain likely, mainly after 4am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

90% chance of rain Thursday Thursday... Rain. High near 44. Chance of precipitation is 90%.

70% chance of rain & snow Thursday Night Thursday Night... Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.

20% chance of rain & snow Friday Friday... A chance of rain and snow before 1pm, then a chance of rain. Mostly sunny, with a high near 46.

20% chance of rain & snow Friday Night Friday Night... A chance of rain and snow. Snow level 1600 feet. Partly cloudy, with a low around 27.

20% chance of rain & snow Saturday Saturday... A chance of rain and snow. Snow level 1400 feet rising to 2200 feet in the afternoon. Mostly sunny, with a high near 44.

20% chance of rain & snow Saturday Night Saturday Night... A chance of rain and snow. Snow level 1700 feet. Partly cloudy, with a low around 27.

10% chance of rain & snow Sunday Sunday... A slight chance of rain and snow. Snow level 1400 feet rising to 2000 feet in the afternoon. Mostly sunny, with a high near 42.

Current Radar Image


Sun Almanac for Union Gap, Washington
Sunrise: 07:40 AM
Sunset: 4:15 PM
Civil Sunrise:07:05 AM
Civil Sunset: 4:50 PM
Nautical Sunrise: 06:26 AM
Nautical Sunset: 5:28 PM
Astro Sunrise: 05:49 AM
Astro Sunset: 6:05 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.