Holtsville Weather Forecast

    • 35
    • 64

    Rain Showers

    • 36
    • 52

    Sunny

    • 40
    • 57

    Mostly Sunny

    • 46
    • 57

    Slight Chance Rain Showers

    • 52
    • 65

    Mostly Cloudy

    • 50
    • 70

    Mostly Cloudy

Today 24 Apr Southwest Suffolk

Mostly cloudy. A slight chance of Showers this Morning, then scattered Showers this afternoon. Highs in the lower 60s. Southwest Winds 10 to 15 Mph, becoming west this afternoon. Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 24 Apr Southwest Suffolk

Partly cloudy with isolated rain Showers in the Evening, then clear after midnight. Lows in the upper 30s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Holtsville Temperature Statistics

April Temperature

Islip, Long Island Mac Arthur Airport (3.1 miles)

  • Lowest 5 April, 2024

    35.7 °F

  • Average April

    50.4 °F

  • Highest 15 April, 2024

    78.7 °F

Climate (2019–Present)

Islip, Long Island Mac Arthur Airport (3.1 miles)

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  • Average Low 2019–2024

    47.3 °F

  • Average 2019–2024

    54.9 °F

  • Average High 2019–2024

    62.5 °F
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