Brunswick Weather Forecast

    • 50
    • 74

    Partly Sunny

    • 51
    • 74

    Mostly Sunny

    • 55
    • 81

    Partly Sunny

    • 52
    • 79

    Partly Sunny

    • 62
    • 72

    Chance Rain Showers

    • 52
    • 81

    Chance Rain Showers

Today 5 Sep Coastal Cumberland

Partly sunny with isolated Showers. Highs in the lower 70s. North Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 5 Sep Coastal Cumberland

Partly cloudy. Lows in the lower 50s. North Winds around 10 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable.

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Brunswick Temperature Statistics

September Temperature

Wiscasset Airport (12.4 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    65 °F

  • Highest 1 September, 2026

    77 °F

Climate (2021–2026)

Wiscasset Airport (12.4 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58 °F
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