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Coulee Dam, Washington Weather Forecast
Coulee Dam, Washington Weather
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Weather Forecast for Coulee Dam, Washington : Okanogan County
Issued: 3:32 am PST Dec 16, 2025 Latitude: 47.9654304 Longitude: -118.9761322 View on Google Maps

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Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
40% chance of rain on Today 100% chance of rain on Tonight 20% chance of rain & snow on Wednesday 90% chance of rain on Thursday 20% chance of rain & snow on Friday 20% chance of snow on Saturday 20% chance of rain & snow on Sunday 40% chance of rain & snow on Monday
High: 52°F Low: 41°F High: 50°F High: 44°F High: 43°F High: 42°F High: 40°F High: 41°F
Low: 37°F Low: 33°F Low: 31°F Low: 29°F Low: 31°F  
Rain Rain Rain & Snow Rain Rain & Snow Snow Rain & Snow Rain & Snow
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Current Conditions at
OMAK - (KOMK)
36°
Clear
as of 3:53 AM PST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
EPHRATA - (KEPH)
43°
Feels like 36°F
Clear
as of 3:53 AM PST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
13 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
MOSES LAKE - (KMWH)
46°
Feels like 41°F
Clear
as of 3:52 AM PST
Rel. Humidity: 65%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
10 MPH
180° South
Cloud Level(s): Clear
40% chance of rain Today Today... A 40 percent chance of rain after 4pm. Partly sunny, with a high near 52. South wind 6 to 11 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain Tonight Tonight... Rain, mainly between 10pm and 4am. Low around 41. Breezy, with a southwest wind 15 to 21 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.
20% chance of rain & snow Wednesday Wednesday... A slight chance of rain, mixing with snow after 9am, then gradually ending. Sunny, with a high near 50. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.
60% chance of rain Wednesday Night Wednesday Night... Rain likely after 4am. Increasing clouds, with a low around 37. South wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Thursday Thursday... Rain. High near 44. Southeast wind 9 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
60% 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 33. Chance of precipitation is 60%. Little or no snow accumulation expected.
20% chance of rain & snow Friday Friday... A slight chance of rain and snow. Mostly sunny, with a high near 43. Chance of precipitation is 20%.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 31.
20% chance of snow Saturday Saturday... A slight chance of snow after 10am, mixing with rain after 1pm. Mostly sunny, with a high near 42. Chance of precipitation is 20%.
20% chance of rain & snow Saturday Night Saturday Night... A slight chance of rain and snow before 10pm. Partly cloudy, with a low around 29. Chance of precipitation is 20%.
20% chance of rain & snow Sunday Sunday... A slight chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 20%.
40% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
40% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 40%.
Sun Almanac for Coulee Dam, Washington
Sunrise: 07:40 AM
Sunset: 4:03 PM
Civil Sunrise:07:04 AM
Civil Sunset: 4:40 PM
Nautical Sunrise: 06:24 AM
Nautical Sunset: 5:19 PM
Astro Sunrise: 05:46 AM
Astro Sunset: 5:57 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.