Orleans Weather Forecast

    • 57
    • 72

    Mostly Sunny

    • 59
    • 76

    Partly Sunny

    • 54
    • 75

    Mostly Sunny

    • 59
    • 75

    Mostly Sunny

    • 59
    • 75

    Mostly Cloudy

    • 59
    • 75

    Mostly Cloudy

Today 13 Sep Barnstable

Sunny. Highs around 70. Southeast Winds 5 to 10 Mph.

Tonight 13 Sep Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Not as cool with Lows in the upper 50s. South Winds 5 to 10 Mph.

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Orleans Temperature Statistics

September Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 9 September, 2025

    52 °F

  • Average September

    65.3 °F

  • Highest 6 September, 2025

    79 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    60.1 °F
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