Costigan Weather Forecast

    • 61
    • 86

    Decreasing Clouds

    • 65
    • 88

    Rain Showers Likely

    • 61
    • 84

    Chance Thunderstorms

    • 58
    • 83

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 62
    • 84

    Chance Rain Showers

Today 8 Jul Southern Penobscot

Partly sunny in the Morning, then clearing. Patchy fog in the morning. Highs in the mid 80s. South Winds around 5 Mph.

Tonight 8 Jul Southern Penobscot

Mostly clear. Lows in the lower 60s. Southwest Winds 5 to 10 Mph.

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Costigan Temperature Statistics

July Temperature

Bangor, Bangor International Airport (16.8 miles)

  • Lowest 5 July, 2026

    59 °F

  • Average July

    78.1 °F

  • Highest 2 July, 2026

    93.7 °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

    47.1 °F

  • Average High 2021–2026

    56.8 °F
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