South Monomoy Island Weather Forecast

    • 56
    • 62

    Mostly Sunny

    • 60
    • 65

    Partly Sunny

    • 61
    • 63

    Rain Showers Likely

    • 54
    • 62

    Rain Showers Likely

    • 54
    • 57

    Mostly Sunny

    • 56
    • 58

    Mostly Sunny

    • 57
    • 60

    Slight Chance Rain Showers

Today 4 Jun Barnstable

Sunny. Near steady temperature in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 4 Jun Barnstable

Partly cloudy this Evening, then becoming mostly clear. Lows in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Monomoy Island Temperature Statistics

June Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    52.8 °F

  • Highest 2 June, 2026

    63 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    59.8 °F
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