Long Island Weather Forecast

    • 28
    • 35

    Increasing Clouds

    • 25
    • 41

    Partly Sunny

    • 6
    • 30

    Mostly Cloudy

    • 8
    • 14

    Mostly Cloudy

    • 13
    • 19

    Chance Snow

    • 13
    • 22

    Chance Snow

Today 21 Jan Suffolk

Sunny in the Morning, then mostly cloudy with a slight chance of snow in the afternoon. Not as cool with Highs in the mid 30s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon. Chance of snow 20 percent.

Tonight 21 Jan Suffolk

Mostly cloudy. A chance of snow in the Evening, then a chance of snow and rain after midnight. Not as cool with Lows in the upper 20s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent.

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Long Island Temperature Statistics

January Temperature

Boston, Logan International Airport (3.1 miles)

  • Lowest 5 January, 2026

    16 °F

  • Average January

    33.3 °F

  • Highest 9 January, 2026

    52 °F

Climate (2021–Present)

Boston, Logan International Airport (3.1 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    61 °F
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