Sister Bay Weather Forecast

    • 38
    • 48

    Rain Showers Likely

    • 34
    • 48

    Chance Rain Showers

    • 39
    • 51

    Mostly Sunny

    • 42
    • 55

    Mostly Sunny

    • 44
    • 57

    Slight Chance Rain Showers

    • 42
    • 59

    Slight Chance Rain Showers

Today 1 May Door

Rain. Highs in the upper 40s. East wind 5 to 10 Mph shifting to the northeast 10 to 20 Mph in the afternoon. Chance of rain 80 percent.

Tonight 1 May Door

Mostly cloudy with a chance of rain Showers. Lows in the upper 30s. North wind 5 to 10 Mph. Chance of rain 50 percent.

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Sister Bay Temperature Statistics

May Temperature

Ephraim-Gibraltar Airport (4.3 miles)

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  • Average May

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Climate (2020–Present)

Ephraim-Gibraltar Airport (4.3 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    45.7 °F

  • Average High 2020–2025

    52.8 °F
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