Stillwater Weather Forecast

    • 48
    • 72

    Decreasing Clouds

    • 53
    • 79

    Mostly Sunny

    • 47
    • 75

    Partly Sunny

    • 59
    • 70

    Rain Showers Likely

    • 50
    • 79

    Partly Sunny

    • 46
    • 69

    Mostly Sunny

Today 6 Sep Southern Penobscot

Partly sunny. Highs in the lower 70s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 6 Sep Southern Penobscot

Partly cloudy in the Evening, then clearing. Lows in the upper 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Stillwater Temperature Statistics

September Temperature

Bangor, Bangor International Airport (9.9 miles)

  • Lowest 1 September, 2026

    47.6 °F

  • Average September

    63.3 °F

  • Highest 1 September, 2026

    80.7 °F

Climate (2021–2026)

Bangor, Bangor International Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.9 °F
Get WillyWeather+ to remove ads