10-Day Weather Forecast - Mercer Island, WA

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  • 50|37°F
    Sunny
    Arrow up

    Today

    50°F

    Sunny. Highs in the lower to mid 50s. Light wind.

    Tonight

    37°F

    Clear. Lows in the mid 30s to lower 40s. Light wind.

    Hourly details
  • Weekend Weather

  • Day

    50°F

    Sunny. Highs in the lower to mid 50s. Light wind.

    Night

    36°F

    Clear. Lows in the mid to upper 30s. Light wind.

    Hourly details
  • Day

    48°F

    Sunny. Highs in the lower to mid 50s. Light wind.

    Night

    36°F

    Mostly clear. Lows in the mid to upper 30s.

    Hourly details
  • Day

    48°F

    Sunny. Highs in the lower 50s.

    Night

    36°F

    Partly cloudy. Lows in the mid to upper 30s.

    Hourly details
  • Day

    47°F

    Partly sunny. Highs near 50.

    Night

    37°F

    Mostly cloudy. Lows near 40.

    Hourly details
  • Day

    47°F

    Mostly cloudy. Highs in the upper 40s.

    Night

    40°F

    Mostly cloudy with a slight chance of rain. Lows in the lower 40s.

    Hourly details
  • Day

    45°F

    Mostly cloudy with a chance of rain. Highs in the upper 40s.

    Night

    38°F

    Mostly cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 38F. Dew point will be around 40F with an average humidity of 97%. Winds will be 2 mph from the SW.

  • Day

    41°F

    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 41F. Dew point will be around 37F with an average humidity of 94%. Winds will be 3 mph from the SW.

    Night

    35°F

    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 35F. Dew point will be around 36F with an average humidity of 96%. Winds will be 2 mph from the W.

  • Weekend Weather

  • Day

    40°F

    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 40F. Dew point will be around 35F with an average humidity of 91%. Winds will be 2 mph from the S.

    Night

    35°F

    Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 35F. Dew point will be around 35F with an average humidity of 92%. Winds will be 2 mph from the S.

  • Day

    42°F

    Cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 42F. Dew point will be around 37F with an average humidity of 94%. Winds will be 3 mph from the S.

    Night

    38°F

    Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 38F. Dew point will be around 39F with an average humidity of 97%. Winds will be 3 mph from the SW.