Chatham Weather Forecast

    • 68
    • 75

    Rain Showers Likely

    • 67
    • 76

    Mostly Sunny

    • 68
    • 79

    Chance Rain Showers

    • 66
    • 78

    Chance Rain Showers

    • 65
    • 75

    Partly Sunny

    • 68
    • 78

    Slight Chance Thunderstorms

Today 5 Aug Barnstable

Showers with a slight chance of Thunderstorms, then Showers likely with a slight chance of Thunderstorms. Patchy fog. Locally heavy rainfall possible. Near steady temperature in the lower 70s. South Winds 10 to 15 Mph. Gusts up to 20 Mph, increasing to 30 Mph. Chance of rain 90 percent.

Tonight 5 Aug Barnstable

Mostly cloudy. A chance of Showers in the evening. Patchy fog in the evening. Humid with Lows in the upper 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

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Chatham Temperature Statistics

August Temperature

Chatham, Chatham Municipal Airport (1.2 miles)

  • Lowest 1 August, 2021

    57 °F
  • Average August

    68.5 °F
  • Highest 2 August, 2021

    79 °F

Climate (2010–Present)

Chatham, Chatham Municipal Airport (1.2 miles)

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  • Average Low 2010–Present

    45.7 °F
  • Average 2010–Present

    51.8 °F
  • Average High 2010–Present

    57.8 °F
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