Long Beach (Stony Brook) Weather Forecast

    • 41
    • 44

    Slight Chance Rain Showers

    • 32
    • 46

    Chance Rain

    • 20
    • 37

    Slight Chance Snow

    • 29
    • 34

    Partly Sunny

    • 30
    • 40

    Chance Rain/Snow

    • 25
    • 36

    Chance Snow

Today 13 Jan Northwest Suffolk

Mostly sunny. Highs in the mid 40s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 13 Jan Northwest Suffolk

Mostly cloudy. A slight chance of Showers after midnight. Near steady temperature around 40. Southwest Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

Long Beach (Stony Brook) Temperature Statistics

January Temperature

Islip, Long Island Mac Arthur Airport (9.3 miles)

  • Lowest 1 January, 2026

    21 °F

  • Average January

    35.6 °F

  • Highest 9 January, 2026

    51.1 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (9.3 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    63.1 °F
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