Belle Terre Weather Forecast

    • 42
    • 48

    Mostly Cloudy

    • 45
    • 54

    Rain

    • 30
    • 49

    Chance Rain

    • 33
    • 41

    Mostly Sunny

    • 39
    • 46

    Partly Sunny

    • 44
    • 51

    Slight Chance Rain

Today 25 Mar Northwest Suffolk

Partly sunny. Highs in the lower 50s. Southwest Winds 5 to 10 Mph.

Tonight 25 Mar Northwest Suffolk

Mostly cloudy. Lows around 40. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

Belle Terre Temperature Statistics

March Temperature

Islip, Long Island Mac Arthur Airport (11.2 miles)

  • Lowest 3 March, 2026

    18.6 °F

  • Average March

    40.9 °F

  • Highest 9 March, 2026

    68.6 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (11.2 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
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