Costigan Weather Forecast

    • 61
    • 66

    Cloudy

    • 52
    • 78

    Chance Rain Showers

    • 46
    • 70

    Sunny

    • 51
    • 75

    Mostly Sunny

    • 57
    • 77

    Chance Rain Showers

    • 51
    • 75

    Slight Chance Rain Showers

Today 9 Sep Southern Penobscot

Mostly cloudy. Highs in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 9 Sep Southern Penobscot

Partly cloudy. Lows in the lower 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Costigan Temperature Statistics

September Temperature

Bangor, Bangor International Airport (16.8 miles)

  • Lowest 1 September, 2026

    47.6 °F

  • Average September

    63.7 °F

  • Highest 1 September, 2026

    80.7 °F

Climate (2021–2026)

Bangor, Bangor International Airport (16.8 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.9 °F
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