Sister Bay Weather Forecast

    • 47
    • 59

    Chance Rain Showers

    • 45
    • 58

    Chance Rain Showers

    • 38
    • 53

    Chance Rain Showers

    • 39
    • 50

    Mostly Cloudy

    • 43
    • 52

    Chance Rain Showers

    • 44
    • 55

    Chance Rain Showers

Today 29 Sep Door

Mostly cloudy. A chance of Showers and a slight chance of Thunderstorms in the afternoon. Highs in the upper 50s. West wind 10 to 15 Mph. Chance of rain 50 percent.

Tonight 29 Sep Door

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms in the Evening, then partly cloudy with a chance of Showers after midnight. Lows in the upper 40s. West wind 10 to 15 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sister Bay Temperature Statistics

September Temperature

Ephraim-Gibraltar Airport (4.3 miles)

  • Lowest 19 September, 2020

    41.2 °F

  • Average September

    58.2 °F

  • Highest 23 September, 2020

    76.3 °F

Climate (2015–Present)

Ephraim-Gibraltar Airport (4.3 miles)

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  • Average Low 2015–Present

    38 °F

  • Average 2015–Present

    44.7 °F

  • Average High 2015–Present

    51.8 °F
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