Swan Lake Weather Forecast

    • 66
    • 82

    Increasing Clouds

    • 62
    • 86

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 61
    • 76

    Mostly Sunny

    • 64
    • 79

    Partly Sunny

    • 65
    • 81

    Slight Chance Rain Showers

Today 6 Jun Southwest Suffolk

Sunny this Morning, then becoming partly sunny. Highs in the lower 80s. Southwest Winds 15 to 20 Mph.

Tonight 6 Jun Southwest Suffolk

Thunderstorms likely with a chance of Showers in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy Rainfall, then some Thunderstorms may produce gusty Winds, small Hail, and heavy rainfall after midnight. Lows in the mid 60s. Southwest Winds 15 to 20 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swan Lake Temperature Statistics

June Temperature

Islip, Long Island Mac Arthur Airport (5.6 miles)

  • Lowest 2 June, 2026

    46.7 °F

  • Average June

    62.4 °F

  • Highest 3 June, 2026

    79 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (5.6 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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