10-Day Weather Forecast - Sumas, WA

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  • |42°F
    Partly Cloudy
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    Tonight

    42°F

    Partly cloudy in the evening then becoming mostly clear. Widespread dense fog after midnight. Lows in the upper 30s to mid 40s. Light wind becoming northeast to 10 mph after midnight.

    Hourly details
  • Day

    57°F

    Mostly sunny. Widespread dense fog in the morning. Highs in the mid 50s to lower 60s. Northeast wind to 10 mph.

    Night

    39°F

    Mostly clear. Lows in the upper 30s to mid 40s. Light wind.

    Hourly details
  • Day

    55°F

    Mostly sunny. Highs in the mid 50s to lower 60s. Light wind.

    Night

    40°F

    Partly cloudy in the evening then mostly cloudy with a chance of rain after midnight. Lows in the 40s. Light wind becoming southeast to 10 mph with gusts to 20 mph after midnight.

    Hourly details
  • Weekend Weather

  • Day

    49°F

    Rain likely in the morning then rain at times in the afternoon. Highs in the lower to mid 50s.

    Night

    39°F

    Rain at times. Lows in the lower to mid 40s.

    Hourly details
  • Day

    49°F

    Rain at times. Highs in the lower 50s.

    Night

    36°F

    Rain at times. Lows near 40.

    Hourly details
  • Day

    46°F

    Rain at times in the morning then rain likely in the afternoon. Highs in the upper 40s.

    Night

    37°F

    Mostly cloudy with rain likely in the evening then mostly cloudy with a chance of rain after midnight. Lows in the mid to upper 30s.

    Hourly details
  • Day

    46°F

    Mostly cloudy with a chance of rain. Highs near 50.

    Night

    32°F

    Mostly cloudy in the evening then becoming partly cloudy. A slight chance of rain. Lows in the lower to mid 30s.

    Hourly details
  • Day

    45°F

    Partly sunny. A chance of rain and snow in the morning then a chance of rain in the afternoon. Highs near 50.

    Night

    34°F

    Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 34F. Dew point will be around 34F with an average humidity of 96%. Winds will be 4 mph from the SE.

  • Day

    42°F

    Cloudy with probable rain. Chance of precipitation 75%. High temperature around 42F. Dew point will be around 37F with an average humidity of 90%. Winds will be 4 mph from the SE.

    Night

    34°F

    Cloudy with probable rain. Chance of precipitation 80%. Low temperature around 34F. Dew point will be around 35F with an average humidity of 94%. Winds will be 6 mph from the S.

  • Day

    41°F

    Cloudy with probable rain. Chance of precipitation 80%. High temperature around 41F. Dew point will be around 36F with an average humidity of 89%. Winds will be 4 mph from the S.

    Night

    32°F

    Cloudy with probable rain-snow mix. Chance of precipitation 70%. Low temperature around 32F. Dew point will be around 33F with an average humidity of 95%. Winds will be 4 mph from the SE.