Sumas, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    40% Chance of Rain
    46°
    Monday 5/13
    Forecast night icon
    46°
    40% Chance of Rain
    Hourly
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 46F. Dew point will be around 47F with an average humidity of 88%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Tuesday 5/14
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the 60s. Southwest wind 10 to 15 mph. Gusts to 25 mph.
    Night Details
    Mostly clear. Lows in the mid 40s to lower 50s. South wind 10 to 20 mph with gusts to 30 mph.
  • Forecast day icon
    Wednesday
    Partly Sunny
    69°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Wednesday 5/15
    Day
    69°
    Partly Sunny
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the 60s to lower 70s. South wind 10 to 15 mph becoming southwest in the afternoon.
    Night Details
    Partly cloudy. Lows near 50. Southwest wind 10 to 15 mph becoming south after midnight.
  • Forecast day icon
    Thursday
    Chance of Rain Showers
    62°
    Forecast night icon
    Night
    Chance of Rain Showers
    44°
    Thursday 5/16
    Day
    62°
    Chance of Rain Showers
    Forecast day icon
    Night
    44°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A slight chance of showers in the afternoon. Highs in the upper 50s to mid 60s. South wind 10 to 20 mph with gusts to 30 mph.
    Night Details
    Mostly cloudy. A slight chance of showers in the evening then a chance of showers after midnight. Lows near 50.
  • Forecast day icon
    Friday
    Chance of Rain Showers
    60°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Friday 5/17
    Day
    60°
    Chance of Rain Showers
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Breezy. Mostly cloudy. A chance of showers in the morning then a slight chance of showers in the afternoon. Highs in the lower 60s.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid to upper 40s.
  • Forecast day icon
    Saturday
    Mostly Cloudy
    62°
    Forecast night icon
    Night
    Mostly Cloudy
    43°
    Saturday 5/18
    Day
    62°
    Mostly Cloudy
    Forecast day icon
    Night
    43°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Highs in the lower to mid 60s.
    Night Details
    Mostly cloudy. Lows in the mid to upper 40s.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    59°
    Forecast night icon
    Night
    Chance of Rain Showers
    40°
    Sunday 5/19
    Day
    59°
    Chance of Rain Showers
    Forecast day icon
    Night
    40°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers in the afternoon. Highs in the mid to upper 60s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A slight chance of showers. Lows in the upper 40s.
  • Forecast day icon
    Monday
    Chance of Rain Showers
    60°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Monday 5/20
    Day
    60°
    Chance of Rain Showers
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny with a slight chance of showers. Highs in the lower 60s.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 44F with an average humidity of 85%. Winds will be 6 mph from the S.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    60°
    Forecast night icon
    Night
    40% Chance of Rain
    44°
    Tuesday 5/21
    Day
    60°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 60F. Dew point will be around 46F with an average humidity of 72%. Winds will be 6 mph from the SW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 44F. Dew point will be around 45F with an average humidity of 87%. Winds will be 5 mph from the S.
  • Forecast day icon
    Wednesday
    50% Chance of Rain
    61°
    Forecast night icon
    Night
    Mostly Cloudy
    45°
    Wednesday 5/22
    Day
    61°
    50% Chance of Rain
    Forecast day icon
    Night
    45°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 61F. Dew point will be around 46F with an average humidity of 70%. Winds will be 6 mph from the SW.
    Night Details
    Mostly cloudy. Low temperature around 45F. Dew point will be around 46F with an average humidity of 86%. Winds will be 5 mph from the S.
  • Forecast day icon
    Thursday
    30% Chance of Rain
    64°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Thursday 5/23
    Day
    64°
    30% Chance of Rain
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Day Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 64F. Dew point will be around 47F with an average humidity of 69%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 46F. Dew point will be around 47F with an average humidity of 87%. Winds will be 5 mph from the S.