Sister Bay Weather Forecast

    • 40
    • 49

    Mostly Cloudy

    • 39
    • 48

    Mostly Cloudy

    • 39
    • 48

    Chance Rain

    • 43
    • 51

    Rain

    • 31
    • 51

    Chance Snow

    • 31
    • 40

    Partly Sunny

Today 14 Apr Door

Mostly cloudy with a slight chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Nearly steady temperature in the upper 40s. East wind 5 to 10 Mph. Chance of rain 20 percent.

Tonight 14 Apr Door

Cloudy. Showers likely and a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Areas of fog. Some Thunderstorms may produce heavy rainfall in the evening. Nearly steady temperature in the mid 40s. Light and variable wind. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sister Bay Temperature Statistics

April Temperature

Ephraim-Gibraltar Airport (4.3 miles)

  • Lowest 7 April, 2026

    18.9 °F

  • Average April

    35.3 °F

  • Highest 12 April, 2026

    64.9 °F

Climate (2021–Present)

Ephraim-Gibraltar Airport (4.3 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    52.6 °F
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