Shelter Island Weather Forecast

    • 19
    • 21

    Partly Sunny

    • 18
    • 36

    Mostly Cloudy

    • 5
    • 26

    Partly Sunny

    • 23
    • 30

    Snow Likely

    • 20
    • 44

    Mostly Cloudy

    • 10
    • 29

    Mostly Sunny

Today 30 Jan Coastal Cumberland

Mostly sunny. Highs in the lower 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 6 below in the morning.

Tonight 30 Jan Coastal Cumberland

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 15. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shelter Island Temperature Statistics

January Temperature

Portland, Portland International Jetport (18 miles)

  • Lowest 22 January, 2025

    -6.2 °F

  • Average January

    24.3 °F

  • Highest 19 January, 2025

    42.7 °F

Climate (2020–Present)

Portland, Portland International Jetport (18 miles)

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  • Average Low 2020–2025

    40.8 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    57.5 °F
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