Sachem Head Weather Forecast

    • 65
    • 75

    Chance Rain Showers

    • 57
    • 78

    Mostly Sunny

    • 57
    • 68

    Mostly Sunny

    • 59
    • 66

    Partly Sunny

    • 63
    • 71

    Partly Sunny

    • 65
    • 74

    Partly Sunny

Today 18 Sep Southern New Haven

Partly sunny. A chance of Showers in the morning. Patchy fog in the morning. Highs in the upper 70s. North Winds around 5 Mph, becoming southwest in the afternoon. Chance of rain 30 percent.

Tonight 18 Sep Southern New Haven

Mostly cloudy with a 40 percent chance of Showers. Patchy fog. Near steady temperature in the mid 60s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

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Sachem Head Temperature Statistics

September Temperature

New Haven, Tweed-New Haven Airport (9.3 miles)

  • Lowest 8 September, 2025

    51.1 °F

  • Average September

    68.7 °F

  • Highest 6 September, 2025

    82.9 °F

Climate (2020–Present)

New Haven, Tweed-New Haven Airport (9.3 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    55.8 °F

  • Average High 2020–2025

    63.8 °F
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