Long Island Weather Forecast

    • 67
    • 78

    Chance Rain Showers

    • 65
    • 72

    Chance Rain Showers

    • 68
    • 72

    Chance Rain Showers

    • 68
    • 75

    Chance Rain Showers

    • 66
    • 76

    Mostly Sunny

    • 65
    • 75

    Mostly Sunny

Today 20 Aug Suffolk

Partly sunny. A slight chance of Showers in the afternoon. Highs in the mid 80s. Northwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 20 Aug Suffolk

Mostly cloudy with a chance of Showers in the Evening, then partly cloudy after midnight. Lows in the mid 60s. Northwest Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Island Temperature Statistics

August Temperature

Boston, Logan International Airport (3.1 miles)

  • Lowest 16 August, 2026

    62.7 °F

  • Average August

    78.1 °F

  • Highest 7 August, 2026

    94.6 °F

Climate (2021–2026)

Boston, Logan International Airport (3.1 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    61 °F
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