Monhegan Island Harbor Weather Forecast

    • 60
    • 69

    Patchy Fog

    • 62
    • 67

    Chance Rain Showers

    • 65
    • 72

    Partly Sunny

    • 64
    • 71

    Slight Chance Thunderstorms

    • 62
    • 72

    Mostly Cloudy

    • 62
    • 69

    Partly Sunny

    • 61
    • 68

    Chance Rain Showers

Today 7 Aug Lincoln

Partly sunny with a slight chance of Showers with isolated Thunderstorms. Hot with Highs in the lower 90s. Light and variable Winds. Chance of rain 20 percent. Heat index Values up to 101.

Tonight 7 Aug Lincoln

Partly cloudy in the Evening, then becoming mostly cloudy. Isolated Thunderstorms in the evening. A slight chance of Showers. Patchy fog in the evening. Areas of fog after midnight. Humid with Lows in the upper 60s. Light and variable Winds. Chance of rain 20 percent. Heat index Values in the mid 90s early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Monhegan Island Harbor Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    68.4 °F

  • Highest 4 August, 2026

    82 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (23.6 miles)

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

  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
Get WillyWeather+ to remove ads