Costigan Weather Forecast

    • 57
    • 81

    Increasing Clouds

    • 54
    • 78

    Chance Thunderstorms

    • 53
    • 76

    Mostly Sunny

    • 51
    • 79

    Mostly Sunny

    • 55
    • 80

    Mostly Cloudy

    • 56
    • 75

    Chance Rain Showers

Today 12 Aug Southern Penobscot

Mostly sunny. Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 12 Aug Southern Penobscot

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers after midnight. Lows in the upper 50s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Costigan Temperature Statistics

August Temperature

Bangor, Bangor International Airport (16.8 miles)

  • Lowest 1 August, 2026

    56.6 °F

  • Average August

    75 °F

  • Highest 6 August, 2026

    92.6 °F

Climate (2021–2026)

Bangor, Bangor International Airport (16.8 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.9 °F
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