Long Island Weather Forecast

    • 40
    • 53

    Mostly Sunny

    • 47
    • 62

    Partly Sunny

    • 39
    • 56

    Mostly Sunny

    • 46
    • 55

    Mostly Cloudy

    • 59
    • 67

    Slight Chance Rain Showers

    • 60
    • 78

    Mostly Cloudy

Today 9 Apr Suffolk

Sunny. Not as cool with Highs in the mid 50s. South Winds 5 to 10 Mph, increasing to 15 to 20 Mph in the afternoon.

Tonight 9 Apr Suffolk

Mostly clear. Lows in the upper 30s. South Winds 10 to 15 Mph.

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  • Temperature Real-Time

Long Island Temperature Statistics

April Temperature

Boston, Logan International Airport (3.1 miles)

  • Lowest 2 April, 2026

    37.7 °F

  • Average April

    48.2 °F

  • Highest 1 April, 2026

    71.7 °F

Climate (2021–Present)

Boston, Logan International Airport (3.1 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61 °F
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