Outer Heron Island Weather Forecast

    • 61
    • 68

    Mostly Cloudy

    • 63
    • 69

    Patchy Fog

    • 66
    • 69

    Chance Rain Showers

    • 60
    • 72

    Partly Sunny

    • 61
    • 69

    Partly Sunny

    • 61
    • 67

    Chance Rain Showers

Today 15 Jul Lincoln

Mostly sunny. Hazy, warm with Highs in the mid 80s. Light and variable Winds. Heat index Values around 90.

Tonight 15 Jul Lincoln

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Humid with Lows in the mid 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Outer Heron Island Temperature Statistics

July Temperature

Wiscasset Airport (14.3 miles)

  • Lowest 5 July, 2025

    56.6 °F

  • Average July

    72.4 °F

  • Highest 6 July, 2025

    90.6 °F

Climate (2020–Present)

Wiscasset Airport (14.3 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.8 °F
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