Johnson Island Weather Forecast

    • 53
    • 63

    Partly Sunny

    • 55
    • 75

    Chance Rain Showers

    • 55
    • 74

    Slight Chance Rain Showers

    • 52
    • 72

    Slight Chance Rain Showers

    • 49
    • 65

    Mostly Cloudy

    • 40
    • 64

    Chance Rain Showers

Today 14 Apr Southern New Haven

Partly sunny. A slight chance of Showers in the afternoon. Highs in the mid 70s. Southwest Winds around 5 Mph, becoming south in the afternoon. Chance of rain 20 percent.

Tonight 14 Apr Southern New Haven

Mostly cloudy in the Evening, then becoming partly cloudy. A 20 percent chance of Showers. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Island Temperature Statistics

April Temperature

New Haven, Tweed-New Haven Airport (6.8 miles)

  • Lowest 9 April, 2026

    28 °F

  • Average April

    46.1 °F

  • Highest 1 April, 2026

    66 °F

Climate (2021–Present)

New Haven, Tweed-New Haven Airport (6.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    63.5 °F
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