Lewis Island Weather Forecast
- 68
- 82
Partly Sunny
- 71
- 87
Mostly Sunny
- 71
- 86
Chance Thunderstorms
- 70
- 85
Chance Thunderstorms
- 69
- 84
Slight Chance Thunderstorms
- 67
- 78
Chance Rain Showers
- 66
- 80
Chance Rain Showers
Today 5 Jul Southern New Haven
Mostly sunny. Highs in the lower 80s. South Winds around 5 Mph.
Tonight 5 Jul Southern New Haven
Partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph.
Lewis Island Temperature Statistics
July Temperature
New Haven, Tweed-New Haven Airport (6.2 miles)
Lowest 3 July, 2025
66.9 °FAverage July
77.4 °FHighest 3 July, 2025
89.1 °F
Climate (2020–Present)
New Haven, Tweed-New Haven Airport (6.2 miles)
Average Low 2020–2025
47.7 °FAverage 2020–2025
55.8 °FAverage High 2020–2025
63.7 °F