Sumas, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Chance of Rain
    44°
    Tuesday 4/23
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. High temperature around 69F. Dew point will be around 39F with an average humidity of 48%. Winds will be 5 mph from the W.
    Night Details
    Mostly cloudy until early morning then a slight chance of rain late in the night. Lows in the 40s. South wind around 10 mph.
  • Forecast day icon
    Wednesday
    Chance of Rain
    53°
    Forecast night icon
    Night
    Chance of Rain Showers
    43°
    Wednesday 4/24
    Day
    53°
    Chance of Rain
    Forecast day icon
    Night
    43°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain likely in the morning then cloudy with a chance of rain in the afternoon. Rainfall amounts less than a tenth of an inch likely. Highs in the lower to mid 50s. South wind around 10 mph.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the 40s. South wind to 10 mph in the evening becoming light.
  • Forecast day icon
    Thursday
    Rain
    52°
    Forecast night icon
    Night
    Rain
    44°
    Thursday 4/25
    Day
    52°
    Rain
    Forecast day icon
    Night
    44°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Rain likely in the morning then rain at times in the afternoon. Rainfall amounts a quarter to a half inch possible. Highs in the lower to mid 50s. East wind to 10 mph.
    Night Details
    Rain at times. Rainfall amounts a tenth to a quarter of an inch possible. Lows in the 40s. East wind 10 to 15 mph decreasing to 10 mph or less after midnight.
  • Forecast day icon
    Friday
    Rain Showers
    57°
    Forecast night icon
    Night
    Chance of Rain Showers
    43°
    Friday 4/26
    Day
    57°
    Rain Showers
    Forecast day icon
    Night
    43°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely. Highs in the mid to upper 50s.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the mid to upper 40s.
  • Forecast day icon
    Saturday
    Rain Showers
    58°
    Forecast night icon
    Night
    Chance of Rain Showers
    42°
    Saturday 4/27
    Day
    58°
    Rain Showers
    Forecast day icon
    Night
    42°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely. Highs in the mid to upper 50s.
    Night Details
    Mostly cloudy with a chance of showers in the evening then mostly cloudy with showers likely after midnight. Lows in the lower to mid 40s.
  • Forecast day icon
    Sunday
    Rain Showers
    56°
    Forecast night icon
    Night
    Rain
    41°
    Sunday 4/28
    Day
    56°
    Rain Showers
    Forecast day icon
    Night
    41°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Showers. Highs in the mid 50s.
    Night Details
    Showers in the evening then rain likely after midnight. Lows in the lower 40s.
  • Forecast day icon
    Monday
    Rain
    52°
    Forecast night icon
    Night
    Chance of Rain Showers
    38°
    Monday 4/29
    Day
    52°
    Rain
    Forecast day icon
    Night
    38°
    Chance of Rain Showers
    Forecast night icon
    Day Details
    Rain likely in the morning then rain at times in the afternoon. Highs in the mid 50s.
    Night Details
    Mostly cloudy with showers likely in the evening then mostly cloudy with a chance of showers after midnight. Lows in the lower 40s.
  • Forecast day icon
    Tuesday
    Rain Showers
    56°
    Forecast night icon
    Night
    40% Chance of Rain
    37°
    Tuesday 4/30
    Day
    56°
    Rain Showers
    Forecast day icon
    Night
    37°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Rain showers likely. Highs in the mid to upper 50s.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 37F. Dew point will be around 38F with an average humidity of 87%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    60°
    Forecast night icon
    Night
    40% Chance of Rain
    40°
    Wednesday 5/1
    Day
    60°
    40% Chance of Rain
    Forecast day icon
    Night
    40°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 60F. Dew point will be around 40F with an average humidity of 60%. Winds will be 4 mph from the SW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 40F. Dew point will be around 40F with an average humidity of 84%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Thursday
    40% Chance of Rain
    61°
    Forecast night icon
    Night
    30% Chance of Rain
    43°
    Thursday 5/2
    Day
    61°
    40% Chance of Rain
    Forecast day icon
    Night
    43°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 61F. Dew point will be around 44F with an average humidity of 66%. Winds will be 5 mph from the SW.
    Night Details
    Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 43F. Dew point will be around 43F with an average humidity of 86%. Winds will be 4 mph from the SE.