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Custer, Washington Weather Forecast
Custer, Washington Weather
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Weather Forecast for Custer, Washington : Whatcom County
Issued: 7:01 am PST Dec 16, 2025 Latitude: 48.917334 Longitude: -122.6379502 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
100% chance of rain on Today 100% chance of rain on Tonight 80% chance of rain on Wednesday 100% chance of rain on Thursday 80% chance of rain on Friday Rain on Saturday Rain and Snow on Sunday 70% chance of rain & snow on Monday
High: 53°F Low: 43°F High: 48°F High: 48°F High: 44°F High: 44°F High: 45°F High: 45°F
Low: 39°F Low: 37°F Low: 36°F Low: 34°F Low: 36°F  
Rain Rain Rain Rain Rain Rain Rain and Snow Rain & Snow
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Current Conditions at
BELLINGHAM - (KBLI)
48°
Feels like 43°F
Cloudy
Light Rain
as of 8:53 AM PST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
10 MPH
150° Southeast
Cloud Level(s): Broken at 5500ft, Solid Overcast at 7000ft
Current Conditions at
ORCAS ISLAND ARPT - (KORS)
48°
Cloudy
Light Rain Mist
as of 8:55 AM PST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 6 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
8 MPH
170° South
Cloud Level(s): Broken at 3300ft, Solid Overcast at 4600ft
Current Conditions at
SKAGIT RGNL ARPT - (KBVS)
48°
Cloudy
as of 8:55 AM PST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 1800ft
Current Conditions at
FRIDAY HARBOR - (KFHR)
48°
Feels like 44°F
Cloudy
Rain
as of 8:53 AM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 7 Miles
Pressure: 29.89 in.
Flight Rule: MVFR
Wind Data
9 MPH
130° Southeast
Cloud Level(s): Broken at 1200ft, Broken at 2100ft, Solid Overcast at 4600ft
100% chance of rain Today Today... Rain. Patchy fog after 10am. High near 53. South wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
100% chance of rain Tonight Tonight... Rain, mainly before 1am. Patchy fog before 9pm. Low around 43. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
80% chance of rain Wednesday Wednesday... Rain. High near 48. Southwest wind 5 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Wednesday Night Wednesday Night... Rain. Low around 39. South southeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of rain Thursday Thursday... Rain. High near 48. South southeast wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
80% chance of rain Thursday Night Thursday Night... Rain. Low around 37. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
80% chance of rain Friday Friday... Rain. High near 44. Chance of precipitation is 80%.
Rain on Friday Night Friday Night... Rain. Cloudy, with a low around 36.
Rain on Saturday Saturday... Rain. Mostly cloudy, with a high near 44.
70% chance of rain Saturday Night Saturday Night... Rain likely, mainly before 10pm. Mostly cloudy, with a low around 34.
Rain and Snow on Sunday Sunday... Rain and snow likely. Mostly cloudy, with a high near 45.
70% chance of rain & snow Sunday Night Sunday Night... Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 36.
70% chance of rain & snow Monday Monday... Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 45.
Current Radar Image


Sun Almanac for Custer, Washington
Sunrise: 07:59 AM
Sunset: 4:14 PM
Civil Sunrise:07:22 AM
Civil Sunset: 4:51 PM
Nautical Sunrise: 06:41 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 06:03 AM
Astro Sunset: 6:10 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.