Sister Islands State Natural Area Weather Forecast

    • 59
    • 68

    Increasing Clouds

    • 57
    • 70

    Rain Showers Likely

    • 50
    • 63

    Slight Chance Rain Showers

    • 48
    • 60

    Mostly Cloudy

    • 46
    • 58

    Rain Showers Likely

    • 39
    • 55

    Slight Chance Rain Showers

    • 42
    • 52

    Mostly Sunny

Today 11 Oct Door

Blustery. Mostly sunny. Highs in the upper 50s.

Tonight 11 Oct Door

Clear in the evening then becoming mostly cloudy. Lows in the upper 50s. South wind 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sister Islands State Natural Area Temperature Statistics

October Temperature

Ephraim-Gibraltar Airport (6.2 miles)

  • Lowest 9 October, 2026

    43.7 °F

  • Average October

    55.7 °F

  • Highest 7 October, 2026

    69.1 °F

Climate (2021–2026)

Ephraim-Gibraltar Airport (6.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    52.6 °F
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