Monomoscoy Island Weather Forecast

    • 67
    • 76

    Increasing Clouds

    • 70
    • 79

    Rain Showers

    • 67
    • 81

    Rain Showers Likely

    • 66
    • 79

    Slight Chance Rain Showers

    • 66
    • 79

    Mostly Sunny

    • 67
    • 80

    Partly Sunny

Today 20 Jul Barnstable

Sunny. Highs in the mid 70s. Northwest Winds around 5 Mph, becoming south this afternoon.

Tonight 20 Jul Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Not as cool with Lows in the upper 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monomoscoy Island Temperature Statistics

July Temperature

Otis Air National Guard Base (5.6 miles)

  • Lowest 12 July, 2026

    59 °F

  • Average July

    73.6 °F

  • Highest 3 July, 2026

    91.4 °F

Climate (2021–2026)

Otis Air National Guard Base (5.6 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.1 °F
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