South Dennis Weather Forecast

    • 61
    • 74

    Chance Rain Showers

    • 62
    • 77

    Partly Sunny

    • 66
    • 80

    Mostly Sunny

    • 69
    • 83

    Chance Rain Showers

    • 71
    • 87

    Slight Chance Rain Showers

    • 73
    • 84

    Mostly Sunny

Today 27 Jun Barnstable

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers in the afternoon. Patchy fog in the morning. Humid with Highs in the lower 70s. Northwest Winds around 5 Mph, becoming south in the afternoon. Chance of rain 30 percent.

Tonight 27 Jun Barnstable

Cloudy. Patchy fog. Near steady temperature in the mid 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dennis Temperature Statistics

June Temperature

Hyannis, Barnstable Municipal-Boardman Airport (6.2 miles)

  • Lowest 2 June, 2026

    37 °F

  • Average June

    67.2 °F

  • Highest 12 June, 2026

    84 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (6.2 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.3 °F
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