Belle Terre Weather Forecast

    • 29
    • 40

    Rain/Snow

    • 36
    • 40

    Rain/Snow

    • 27
    • 42

    Mostly Cloudy

    • 29
    • 42

    Chance Rain

    • 31
    • 35

    Slight Chance Rain

    • 34
    • 36

    Chance Rain

Today 22 Dec Northwest Suffolk

Sunny. Highs around 40. West Winds 5 to 10 Mph.

Tonight 22 Dec Northwest Suffolk

Partly cloudy in the Evening, then cloudy with a slight chance of snow after midnight. Lows in the upper 20s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of snow 20 percent.

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Belle Terre Temperature Statistics

December Temperature

Islip, Long Island Mac Arthur Airport (11.2 miles)

  • Lowest 15 December, 2025

    19.9 °F

  • Average December

    35.1 °F

  • Highest 19 December, 2025

    57.9 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (11.2 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    63.1 °F
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