Monument Beach Weather Forecast

    • 65
    • 72

    Rain Showers

    • 49
    • 73

    Chance Rain Showers

    • 50
    • 67

    Mostly Sunny

    • 61
    • 75

    Partly Sunny

    • 63
    • 75

    Slight Chance Rain Showers

    • 59
    • 73

    Chance Rain Showers

    • 59
    • 69

    Chance Rain Showers

Today 13 Sep Barnstable

Showers with a chance of Thunderstorms. Patchy fog. Some Thunderstorms may produce frequent lightning and heavy rainfall. Locally heavy rainfall possible. Near steady temperature around 70. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 13 Sep Barnstable

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Patchy fog. Humid with Lows in the lower 60s. West Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monument Beach Temperature Statistics

September Temperature

Otis Air National Guard Base (6.8 miles)

  • Lowest 6 September, 2026

    55.4 °F

  • Average September

    67.3 °F

  • Highest 4 September, 2026

    80.6 °F

Climate (2021–2026)

Otis Air National Guard Base (6.8 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    59.1 °F
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