Stillwater Weather Forecast

    • 47
    • 70

    Mostly Cloudy

    • 52
    • 76

    Partly Sunny

    • 54
    • 73

    Chance Rain Showers

    • 43
    • 72

    Mostly Sunny

    • 43
    • 65

    Chance Rain Showers

    • 45
    • 65

    Rain Showers Likely

    • 45
    • 65

    Slight Chance Rain Showers

Today 15 Sep Southern Penobscot

Mostly sunny. Near steady temperature in the upper 60s. South Winds around 5 Mph.

Tonight 15 Sep Southern Penobscot

Partly cloudy. Patchy fog after midnight. Lows in the upper 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stillwater Temperature Statistics

September Temperature

Bangor, Bangor International Airport (9.9 miles)

  • Lowest 9 September, 2026

    40.6 °F

  • Average September

    62.6 °F

  • Highest 10 September, 2026

    82.7 °F

Climate (2021–2026)

Bangor, Bangor International Airport (9.9 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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