Outer Heron Island Weather Forecast

    • 63
    • 67

    Mostly Sunny

    • 66
    • 70

    Breezy

    • 64
    • 72

    Chance Thunderstorms

    • 61
    • 70

    Partly Sunny

    • 61
    • 67

    Slight Chance Rain Showers

    • 61
    • 67

    Partly Sunny

Today 23 Jul Lincoln

Mostly sunny. Highs in the upper 70s. Light and variable Winds, becoming south around 10 Mph this afternoon.

Tonight 23 Jul Lincoln

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. South Winds around 10 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • 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

    72.7 °F

  • Highest 6 July, 2025

    90.6 °F

Climate (2020–Present)

Wiscasset Airport (14.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.8 °F
Get WillyWeather+ to remove ads