Sumas, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    40°
    Friday 4/19
    Forecast night icon
    40°
    Clear
    Hourly
    Night Details
    Clear. Lows in the upper 30s to mid 40s. Northeast wind to 10 mph.
  • Forecast day icon
    Saturday
    Chance of Rain
    68°
    Forecast night icon
    Night
    Rain
    42°
    Saturday 4/20
    Day
    68°
    Chance of Rain
    Forecast day icon
    Night
    42°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny until late afternoon then mostly cloudy with a chance of rain late in the afternoon. Highs in the 60s. Northeast wind 10 to 15 mph becoming southeast 10 to 20 mph in the afternoon.
    Night Details
    Rain. Rainfall amounts a quarter to a half inch possible. Lows in the upper 30s to mid 40s. Southwest wind 10 to 20 mph with gusts to 30 mph.
  • Forecast day icon
    Sunday
    Rain
    52°
    Forecast night icon
    Night
    Chance of Rain
    36°
    Sunday 4/21
    Day
    52°
    Rain
    Forecast day icon
    Night
    36°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Rain at times in the morning then rain likely in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the lower to mid 50s. South wind 10 to 20 mph becoming southwest 10 to 15 mph in the afternoon.
    Night Details
    Partly cloudy. A slight chance of rain in the evening. Lows in the upper 30s to mid 40s. Southwest wind 10 to 15 mph becoming south after midnight.
  • Forecast day icon
    Monday
    Sunny
    60°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Monday 4/22
    Day
    60°
    Sunny
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs near 60.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 40s.
  • Forecast day icon
    Tuesday
    Partly Sunny
    67°
    Forecast night icon
    Night
    Chance of Rain
    41°
    Tuesday 4/23
    Day
    67°
    Partly Sunny
    Forecast day icon
    Night
    41°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the lower to mid 60s.
    Night Details
    Mostly cloudy. A slight chance of rain in the evening then a chance of rain after midnight. Lows in the lower to mid 40s.
  • Forecast day icon
    Wednesday
    Chance of Rain
    60°
    Forecast night icon
    Night
    Chance of Rain
    42°
    Wednesday 4/24
    Day
    60°
    Chance of Rain
    Forecast day icon
    Night
    42°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain. Highs in the upper 50s.
    Night Details
    Mostly cloudy. A slight chance of rain in the evening then a chance of rain after midnight. Lows in the lower to mid 40s.
  • Forecast day icon
    Thursday
    Chance of Rain
    55°
    Forecast night icon
    Night
    Chance of Rain
    41°
    Thursday 4/25
    Day
    55°
    Chance of Rain
    Forecast day icon
    Night
    41°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain. Highs in the mid to upper 50s.
    Night Details
    Mostly cloudy with a chance of rain. Lows in the mid 40s.
  • Forecast day icon
    Friday
    Chance of Rain
    59°
    Forecast night icon
    Night
    30% Chance of Rain
    41°
    Friday 4/26
    Day
    59°
    Chance of Rain
    Forecast day icon
    Night
    41°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Highs in the mid to upper 50s.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 41F. Dew point will be around 43F with an average humidity of 88%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    59°
    Forecast night icon
    Night
    50% Chance of Rain
    43°
    Saturday 4/27
    Day
    59°
    50% Chance of Rain
    Forecast day icon
    Night
    43°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 59F. Dew point will be around 44F with an average humidity of 71%. Winds will be 5 mph from the SW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 43F. Dew point will be around 43F with an average humidity of 85%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Sunday
    70% Chance of Rain
    57°
    Forecast night icon
    Night
    70% Chance of Rain
    41°
    Sunday 4/28
    Day
    57°
    70% Chance of Rain
    Forecast day icon
    Night
    41°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with probable rain. Chance of precipitation 65%. High temperature around 57F. Dew point will be around 45F with an average humidity of 76%. Winds will be 5 mph from the SW.
    Night Details
    Cloudy with probable rain. Chance of precipitation 65%. Low temperature around 41F. Dew point will be around 42F with an average humidity of 87%. Winds will be 6 mph from the S.