Sumas, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Chance of Rain Showers
    44°
    Wednesday 4/24
    Forecast night icon
    44°
    Chance of Rain Showers
    Hourly
    Night Details
    Cloudy. A chance of showers until early morning then a chance of rain late in the night. Lows in the 40s. South wind to 10 mph.
  • Forecast day icon
    Thursday
    Rain
    53°
    Forecast night icon
    Night
    Rain
    45°
    Thursday 4/25
    Day
    53°
    Rain
    Forecast day icon
    Night
    45°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Rain likely in the morning then rain in the afternoon. Rainfall amounts a half inch to one inch possible. Highs in the lower to mid 50s. Southeast wind 10 to 15 mph becoming south 10 to 20 mph in the afternoon.
    Night Details
    Rain in the evening then showers after midnight. Rainfall amounts a quarter to a half inch possible. Lows in the 40s. Southeast wind 10 to 15 mph becoming east after midnight.
  • Forecast day icon
    Friday
    Chance of Rain Showers
    57°
    Forecast night icon
    Night
    Chance of Rain Showers
    44°
    Friday 4/26
    Day
    57°
    Chance of Rain Showers
    Forecast day icon
    Night
    44°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Cloudy with showers in the morning then cloudy with a chance of showers in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the 50s. Northeast wind to 10 mph becoming southwest in the afternoon.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the 40s. Light wind becoming south around 10 mph after midnight.
  • Forecast day icon
    Saturday
    Rain
    54°
    Forecast night icon
    Night
    Chance of Rain
    44°
    Saturday 4/27
    Day
    54°
    Rain
    Forecast day icon
    Night
    44°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Showers in the morning then rain likely in the afternoon. Highs in the mid 50s.
    Night Details
    Mostly cloudy with a chance of rain in the evening then rain likely after midnight. Lows in the mid to upper 40s.
  • Forecast day icon
    Sunday
    Rain Showers
    53°
    Forecast night icon
    Night
    Rain Showers
    38°
    Sunday 4/28
    Day
    53°
    Rain Showers
    Forecast day icon
    Night
    38°
    Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers. Highs in the lower to mid 50s.
    Night Details
    Showers. Lows in the lower 40s.
  • Forecast day icon
    Monday
    Rain Showers
    53°
    Forecast night icon
    Night
    Rain Showers
    39°
    Monday 4/29
    Day
    53°
    Rain Showers
    Forecast day icon
    Night
    39°
    Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain showers. Highs in the lower to mid 50s.
    Night Details
    Rain showers likely. Lows near 40.
  • Forecast day icon
    Tuesday
    Rain
    54°
    Forecast night icon
    Night
    Chance of Rain Showers
    39°
    Tuesday 4/30
    Day
    54°
    Rain
    Forecast day icon
    Night
    39°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain likely. Highs in the mid to upper 50s.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the lower 40s.
  • Forecast day icon
    Wednesday
    Chance of Rain Showers
    58°
    Forecast night icon
    Night
    50% Chance of Rain
    41°
    Wednesday 5/1
    Day
    58°
    Chance of Rain Showers
    Forecast day icon
    Night
    41°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of showers in the morning then mostly cloudy with showers likely in the afternoon. Highs near 60.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 41F. Dew point will be around 42F with an average humidity of 93%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    57°
    Forecast night icon
    Night
    30% Chance of Rain
    40°
    Thursday 5/2
    Day
    57°
    50% Chance of Rain
    Forecast day icon
    Night
    40°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 57F. Dew point will be around 42F with an average humidity of 69%. Winds will be 7 mph from the SW.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 40F. Dew point will be around 41F with an average humidity of 90%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Friday
    40% Chance of Rain
    59°
    Forecast night icon
    Night
    Partly Cloudy
    41°
    Friday 5/3
    Day
    59°
    40% Chance of Rain
    Forecast day icon
    Night
    41°
    Partly Cloudy
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 59F. Dew point will be around 42F with an average humidity of 67%. Winds will be 7 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 41F. Dew point will be around 42F with an average humidity of 89%. Winds will be 4 mph from the SE.