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January 31st, 2026 :: 3:42 am PST   

Local Weather Report for
Sumas
Washington, United States

 Current Sumas Weather Conditions Updated January 31st at 2:46 am 
mist
Temperature:45°F Dew Point:45°F
Barometer:30.24 inHg Wind:N 9 Mph
Humidity:100.0% Visibility:0M
 
 Sumas Weather Forecast Summary  
 
Today
Jan 31st
Sunday
Feb 1st
Monday
Feb 2nd
Tuesday
Feb 3rd
Wednesday
Feb 4th
Showers Showers Cloudy Cloudy Cloudy
46°F
44°F
40°F
45°F
37°F
50°F
37°F
57°F
44°F
 
 Sumas Detailed Weather Forecast  
 
Saturday, January 31st, 2026
Overnight Temperature: 40°F
Cloudy with a chance of showers.
Morning Temperature: 44°F
Cloudy with a few showers.
Afternoon Temperature: 44°F
Cloudy with showers likely.
Evening Temperature: 44°F
Cloudy.
Sunday, February 1st, 2026
Overnight Temperature: 43°F
Cloudy with a few showers.
Morning Temperature: 41°F
Cloudy with showers.
Afternoon Temperature: 41°F
Cloudy with a few showers.
Evening Temperature: 40°F
Cloudy with showers likely.
Monday, February 2nd, 2026
Overnight Temperature: 38°F
Cloudy with a chance of showers. Showers possibly mixed with wet flurries.
Morning Temperature: 43°F
Cloudy with a slight chance of showers.
Afternoon Temperature: 40°F
Cloudy with a slight chance of showers. Showers possibly mixed with wet flurries.
Evening Temperature: 38°F
A mix of cloudy and clear skies.
Tuesday, February 3rd, 2026
Overnight Temperature: 39°F
Cloudy.
Morning Temperature: 47°F
Cloudy.
Afternoon Temperature: 47°F
Cloudy.
Evening Temperature: 47°F
Cloudy with a slight chance of showers.
Wednesday, February 4th, 2026
Overnight Temperature: 45°F
A mix of cloudy and clear skies.
Morning Temperature: 54°F
Cloudy.
Afternoon Temperature: 50°F
Cloudy.
Evening Temperature: 45°F
Clear.
Thursday, February 5th, 2026
Overnight Temperature: 43°F
Clear.
Morning Temperature: 54°F
Sunny.
Afternoon Temperature: 50°F
Sunny.
Evening Temperature: 44°F
A mix of cloudy and clear skies.
Friday, February 6th, 2026
Overnight Temperature: 43°F
A mix of clear and cloudy skies.
Morning Temperature: 53°F
Cloudy.
Afternoon Temperature: 47°F
A mix of cloud and sun.
Evening Temperature: 42°F
Clear with cloudy periods.
Saturday, February 7th, 2026
Overnight Temperature: 39°F
Clear.
Morning Temperature: 48°F
Sunny.
Afternoon Temperature: 44°F
Cloudy.
Evening Temperature: 40°F
Cloudy with a chance of showers. Showers possibly mixed with wet flurries.
Sunday, February 8th, 2026
Overnight Temperature: 36°F
A mix of cloudy and clear skies with a chance of showers. Showers possibly mixed with wet flurries.
Morning Temperature: 42°F
Cloudy.
Afternoon Temperature: 39°F
Cloudy.
Evening Temperature: 34°F
Cloudy.





 

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This WeatherCity Weather Forecast for Sumas, Washington, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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