Cedar Beach Weather Forecast

    • 72
    • 86

    Chance Thunderstorms

    • 68
    • 80

    Partly Sunny

    • 72
    • 80

    Rain Showers Likely

    • 68
    • 80

    Chance Thunderstorms

    • 67
    • 78

    Mostly Sunny

    • 69
    • 78

    Partly Sunny

Today 17 Jul Northwest Suffolk

Patchy fog in the morning. Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may produce gusty Winds and heavy rainfall. Humid with Highs around 90. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent. Heat index Values up to 102.

Tonight 17 Jul Northwest Suffolk

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the upper 70s. Southwest Winds around 5 Mph. Chance of rain 30 percent.

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Cedar Beach Temperature Statistics

July Temperature

Islip, Long Island Mac Arthur Airport (11.8 miles)

  • Lowest 5 July, 2025

    64.7 °F

  • Average July

    77.4 °F

  • Highest 8 July, 2025

    92.6 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63 °F
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