Stillwater Weather Forecast

    • 48
    • 74

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 53
    • 80

    Partly Sunny

    • 55
    • 81

    Partly Sunny

    • 42
    • 69

    Mostly Sunny

    • 38
    • 64

    Sunny

Today 15 Sep Southern Penobscot

Sunny. Highs in the mid 70s. North Winds around 5 Mph.

Tonight 15 Sep Southern Penobscot

Mostly clear. Patchy fog after midnight. Lows in the upper 40s. Southwest Winds around 5 Mph, becoming west after midnight.

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Stillwater Temperature Statistics

September Temperature

Bangor, Bangor International Airport (9.9 miles)

  • Lowest 11 September, 2025

    42.1 °F

  • Average September

    61 °F

  • Highest 1 September, 2025

    80.1 °F

Climate (2020–Present)

Bangor, Bangor International Airport (9.9 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    57 °F
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