Sippican Harbor - Stewart Island Weather Forecast

    • 57
    • 66

    Rain

    • 53
    • 63

    Chance Rain

    • 51
    • 64

    Slight Chance Rain Showers

    • 52
    • 64

    Breezy

    • 52
    • 64

    Chance Rain Showers

    • 52
    • 65

    Chance Rain Showers

    • 52
    • 65

    Chance Rain Showers

Today 20 Sep Southern Plymouth

Rain. Patchy fog. Near steady temperature in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain near 100 percent.

Tonight 20 Sep Southern Plymouth

Rain. Patchy fog. Not as cool. Near steady temperature in the lower 60s. Southeast Winds 5 to 10 Mph, becoming east after midnight. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sippican Harbor - Stewart Island Temperature Statistics

September Temperature

New Bedford, New Bedford Regional Airport (9.9 miles)

  • Lowest 15 September, 2026

    45 °F

  • Average September

    66.6 °F

  • Highest 10 September, 2026

    84 °F

Climate (2021–2026)

New Bedford, New Bedford Regional Airport (9.9 miles)

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

  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    61.9 °F
Get WillyWeather+ to remove ads