Flat Island Weather Forecast

    • 63
    • 68

    Rain Showers

    • 62
    • 79

    Mostly Sunny

    • 63
    • 78

    Partly Sunny

    • 65
    • 82

    Partly Sunny

    • 67
    • 84

    Slight Chance Thunderstorms

    • 66
    • 83

    Partly Sunny

Today 3 Aug Coastal Waldo

Showers with a slight chance of Thunderstorms. Areas of fog this morning. Areas of fog this afternoon. Highs in the lower 70s. Southeast Winds around 10 Mph, becoming south with Gusts up to 30 Mph this afternoon. Chance of rain near 100 percent.

Tonight 3 Aug Coastal Waldo

Areas of fog in the evening. Cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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Flat Island Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (18.6 miles)

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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

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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