Dennis Port Weather Forecast
- 73
- 84
Increasing Clouds
- 73
- 84
Partly Sunny
- 72
- 84
Mostly Sunny
- 73
- 84
Partly Sunny
- 71
- 84
Chance Rain Showers
- 70
- 81
Partly Sunny
Today 7 Aug Barnstable
Sunny. Patchy fog this morning. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.
Tonight 7 Aug Barnstable
Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.
Dennis Port Temperature Statistics
August Temperature
Chatham, Chatham Municipal Airport (6.8 miles)
Lowest 5 August, 2026
61 °FAverage August
73.1 °FHighest 5 August, 2026
82 °F
Climate (2021–2026)
Chatham, Chatham Municipal Airport (6.8 miles)
Average Low 2021–2026
47.4 °FAverage 2021–2026
53.7 °FAverage High 2021–2026
59.8 °F