Flat Island Weather Forecast

    • 38
    • 54

    Partly Sunny

    • 40
    • 51

    Partly Sunny

    • 42
    • 46

    Rain Likely

    • 44
    • 46

    Rain

    • 42
    • 48

    Chance Rain Showers

    • 41
    • 49

    Chance Rain Showers

Today 27 Apr Coastal Waldo

Partly sunny. Highs in the lower 60s. Light and variable Winds.

Tonight 27 Apr Coastal Waldo

Mostly clear. Lows in the mid 30s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Island Temperature Statistics

April Temperature

Rockland, Knox County Regional Airport (18.6 miles)

  • Lowest 7 April, 2026

    24.1 °F

  • Average April

    41.5 °F

  • Highest 17 April, 2026

    66 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.9 °F
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