10-Day Weather Forecast - Mercer Island, WA

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  • 53|47°F
    Rain
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    Today

    53°F

    Cloudy with likely rain. Chance of precipitation 100%. High temperature around 53F. Dew point will be around 45F with an average humidity of 92%. Winds will be 2 mph from the S.

    Tonight

    47°F

    Mostly cloudy. A chance of rain in the evening then a slight chance of rain late in the evening. Patchy fog after midnight. Lows in the mid to upper 40s. Light wind.

    Hourly details
  • Day

    58°F

    Partly sunny. Patchy fog until late afternoon. Highs near 60. Light wind.

    Night

    48°F

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

    Hourly details
  • Day

    61°F

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

    Night

    42°F

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

    Hourly details
  • Day

    59°F

    Sunny. Highs near 60.

    Night

    41°F

    Mostly clear. Lows in the lower 40s.

    Hourly details
  • Day

    58°F

    Mostly sunny. Highs near 60.

    Night

    46°F

    Mostly cloudy. A slight chance of rain after midnight. Lows in the lower to mid 40s.

    Hourly details
  • Weekend Weather

  • Day

    54°F

    Mostly cloudy with a chance of rain. Highs in the mid to upper 50s.

    Night

    45°F

    Rain likely. Lows in the mid 40s.

    Hourly details
  • Day

    51°F

    Rain at times. Highs in the lower to mid 50s.

    Night

    44°F

    Mostly cloudy with rain likely in the evening then mostly cloudy with a chance of rain after midnight. Lows in the lower 40s.

  • Day

    46°F

    Mostly cloudy with a chance of rain. Highs in the lower 50s.

    Night

    39°F

    Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 39F. Dew point will be around 40F with an average humidity of 95%. Winds will be 3 mph from the SW.

  • Day

    46°F

    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 46F. Dew point will be around 39F with an average humidity of 87%. Winds will be 2 mph from the W.

    Night

    36°F

    Clear with a chance of rain. Chance of precipitation 35%. Low temperature around 36F. Dew point will be around 36F with an average humidity of 90%. Winds will be 1 mph from the SW.

  • Day

    45°F

    Mostly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 45F. Dew point will be around 37F with an average humidity of 82%. Winds will be 2 mph from the SW.

    Night

    37°F

    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 37F. Dew point will be around 37F with an average humidity of 90%. Winds will be 2 mph from the SW.