Flat Island Weather Forecast

    • 53
    • 62

    Rain Showers

    • 55
    • 64

    Rain Showers Likely

    • 55
    • 72

    Partly Sunny

    • 55
    • 68

    Chance Rain Showers

    • 56
    • 65

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

Today 22 Jun Coastal Waldo

Areas of dense fog in the morning. Mostly cloudy. Highs around 70. Light and variable Winds, becoming south around 10 Mph in the afternoon.

Tonight 22 Jun Coastal Waldo

Rain. Patchy fog. Lows in the lower 50s. Light and variable Winds. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Island Temperature Statistics

June Temperature

Rockland, Knox County Regional Airport (18.6 miles)

  • Lowest 2 June, 2026

    37.9 °F

  • Average June

    60.2 °F

  • Highest 9 June, 2026

    81 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    54.8 °F
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