Smithtown Bay Weather Forecast

    • 27
    • 35

    Mostly Sunny

    • 33
    • 41

    Mostly Sunny

    • 44
    • 46

    Rain

    • 47
    • 57

    Rain Showers

    • 36
    • 49

    Slight Chance Rain Showers

    • 34
    • 42

    Partly Sunny

    • 32
    • 41

    Partly Sunny

Today 18 Dec Northwest Suffolk

Mostly clear. Lows in the lower 20s. Northwest Winds 10 to 15 Mph. Gusts up to 25 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Smithtown Bay Temperature Statistics

December Temperature

Islip, Long Island Mac Arthur Airport (11.2 miles)

  • Lowest 8 December, 2018

    19 °F
  • Average December

    37.8 °F
  • Highest 3 December, 2018

    57 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (11.2 miles)

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  • Average Low 2010–Present

    46 °F
  • Average 2010–Present

    53.9 °F
  • Average High 2010–Present

    61.4 °F
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