South Orleans Weather Forecast

    • 68
    • 74

    Rain Showers Likely

    • 68
    • 74

    Mostly Cloudy

    • 70
    • 78

    Mostly Sunny

    • 68
    • 77

    Chance Rain Showers

    • 67
    • 73

    Chance Rain Showers

    • 68
    • 73

    Chance Rain Showers

Today 17 Aug Barnstable

Mostly cloudy with a 50 percent chance of Showers. Patchy fog in the afternoon. Humid with Highs in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 17 Aug Barnstable

Mostly cloudy with a 20 percent chance of Showers. Not as cool. Near steady temperature around 70. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Orleans Temperature Statistics

August Temperature

Chatham, Chatham Municipal Airport (4.3 miles)

  • Lowest 5 August, 2026

    61 °F

  • Average August

    74.8 °F

  • Highest 11 August, 2026

    84.9 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (4.3 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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