Isle Au Haut - Old Cove Weather Forecast
- 57
- 67
Becoming Sunny
- 55
- 67
Sunny
- 57
- 63
Partly Sunny
- 58
- 64
Chance Rain Showers
- 54
- 68
Mostly Sunny
- 58
- 63
Slight Chance Rain Showers
Today 10 Sep Knox
Partly sunny. Highs in the lower 80s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 10 Sep Knox
Partly cloudy. Lows in the lower 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.
Isle Au Haut - Old Cove Temperature Statistics
September Temperature
Rockland, Knox County Regional Airport (24.2 miles)
Lowest 1 September, 2026
48.9 °FAverage September
61.9 °FHighest 7 September, 2026
78.1 °F
Climate (2021–2026)
Rockland, Knox County Regional Airport (24.2 miles)
Average Low 2021–2026
39.5 °FAverage 2021–2026
47.6 °FAverage High 2021–2026
54.8 °F