Sumas, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Chance of Rain Showers
    51°
    Forecast night icon
    Night
    Chance of Storms
    40°
    Thursday 3/28
    Day
    51°
    Chance of Rain Showers
    Forecast day icon
    Night
    40°
    Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a slight chance of showers late in the morning then partly sunny with a chance of showers in the afternoon. Highs in the lower to mid 50s. Southeast wind 10 to 20 mph becoming south in the afternoon. Gusts to 30 mph.
    Night Details
    Breezy. Mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers in the evening then showers likely after midnight. Some thunderstorms may produce small hail in the evening. Rainfall amounts less than a tenth of an inch likely except higher amounts possible in thunderstorms. Lows in the upper 30s to mid 40s. Southeast wind 15 to 25 mph.
  • Forecast day icon
    Friday
    Chance of Rain Showers
    50°
    Forecast night icon
    Night
    Mostly Clear
    34°
    Friday 3/29
    Day
    50°
    Chance of Rain Showers
    Forecast day icon
    Night
    34°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain showers. Highs in the lower to mid 50s. East wind 10 to 20 mph becoming southeast around 10 mph in the afternoon.
    Night Details
    Mostly clear. Lows in the 30s to lower 40s. Northwest wind to 10 mph in the evening becoming light.
  • Forecast day icon
    Saturday
    Mostly Sunny
    55°
    Forecast night icon
    Night
    Partly Cloudy
    34°
    Saturday 3/30
    Day
    55°
    Mostly Sunny
    Forecast day icon
    Night
    34°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the 50s. Northeast wind to 10 mph becoming north in the afternoon.
    Night Details
    Partly cloudy. Lows in the mid to upper 30s.
  • Forecast day icon
    Sunday
    Sunny
    58°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Sunday 3/31
    Day
    58°
    Sunny
    Forecast day icon
    Night
    39°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 50s to lower 60s.
    Night Details
    Partly cloudy. Lows in the lower 40s.
  • Forecast day icon
    Monday
    Partly Sunny
    59°
    Forecast night icon
    Night
    Chance of Rain
    42°
    Monday 4/1
    Day
    59°
    Partly Sunny
    Forecast day icon
    Night
    42°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid 50s to lower 60s.
    Night Details
    Mostly cloudy. A slight chance of rain in the evening then a chance of rain after midnight. Lows in the mid to upper 40s.
  • Forecast day icon
    Tuesday
    Chance of Rain
    60°
    Forecast night icon
    Night
    Chance of Rain
    44°
    Tuesday 4/2
    Day
    60°
    Chance of Rain
    Forecast day icon
    Night
    44°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain. Highs in the mid 50s.
    Night Details
    Mostly cloudy with a chance of rain. Lows in the lower 40s.
  • Forecast day icon
    Wednesday
    Chance of Frozen Mix
    51°
    Forecast night icon
    Night
    50% Chance of Rain
    34°
    Wednesday 4/3
    Day
    51°
    Chance of Frozen Mix
    Forecast day icon
    Night
    34°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with rain and snow likely in the morning then mostly cloudy with a chance of rain in the afternoon. Highs in the lower 50s.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 45%. Low temperature around 34F. Dew point will be around 36F with an average humidity of 89%. Winds will be 6 mph from the S.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    51°
    Forecast night icon
    Night
    40% Chance of Rain
    34°
    Thursday 4/4
    Day
    51°
    50% Chance of Rain
    Forecast day icon
    Night
    34°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 50%. High temperature around 51F. Dew point will be around 38F with an average humidity of 75%. Winds will be 4 mph from the W.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 34F. Dew point will be around 35F with an average humidity of 85%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Friday
    50% Chance of Rain
    50°
    Forecast night icon
    Night
    40% Chance of Rain
    38°
    Friday 4/5
    Day
    50°
    50% Chance of Rain
    Forecast day icon
    Night
    38°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 50F. Dew point will be around 40F with an average humidity of 80%. Winds will be 3 mph from the SW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 38F. Dew point will be around 39F with an average humidity of 91%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    51°
    Forecast night icon
    Night
    40% Chance of Rain
    38°
    Saturday 4/6
    Day
    51°
    50% Chance of Rain
    Forecast day icon
    Night
    38°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 51F. Dew point will be around 42F with an average humidity of 82%. Winds will be 4 mph from the SW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 38F. Dew point will be around 39F with an average humidity of 92%. Winds will be 5 mph from the SE.