Stillwater Weather Forecast

    • 40
    • 63

    Partly Sunny

    • 39
    • 65

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

    • 47
    • 66

    Chance Rain Showers

    • 47
    • 65

    Slight Chance Rain Showers

    • 46
    • 66

    Slight Chance Rain Showers

Today 22 Sep Southern Penobscot

Partly sunny in the Morning, then clearing. Highs in the lower 60s. North Winds 5 to 10 Mph.

Tonight 22 Sep Southern Penobscot

Clear. Patchy fog. Lows around 40. Northeast Winds around 5 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 15 September, 2026

    39.7 °F

  • Average September

    61.3 °F

  • Highest 10 September, 2026

    82.7 °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