Lewis Island Weather Forecast

    • 65
    • 80

    Increasing Clouds

    • 69
    • 79

    Rain Showers

    • 63
    • 83

    Rain Showers Likely

    • 61
    • 79

    Mostly Sunny

    • 64
    • 77

    Mostly Sunny

    • 65
    • 78

    Partly Sunny

    • 68
    • 80

    Partly Sunny

Today 20 Jul Southern New Haven

Sunny. Highs around 80. South Winds around 5 Mph.

Tonight 20 Jul Southern New Haven

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the mid 60s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis Island Temperature Statistics

July Temperature

New Haven, Tweed-New Haven Airport (6.2 miles)

  • Lowest 7 July, 2026

    60.1 °F

  • Average July

    75.3 °F

  • Highest 3 July, 2026

    93.9 °F

Climate (2021–2026)

New Haven, Tweed-New Haven Airport (6.2 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    63.4 °F
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