Poplar Tree Bay Weather Forecast

    • 60
    • 75

    Mostly Cloudy

    • 54
    • 71

    Partly Sunny

    • 47
    • 67

    Partly Sunny

    • 50
    • 62

    Chance Rain Showers

    • 48
    • 64

    Partly Sunny

    • 48
    • 63

    Chance Rain Showers

    • 51
    • 65

    Partly Sunny

Today 16 Sep Jefferson

Partly sunny with a 40 percent chance of Showers. Highs in the upper 60s.

Tonight 16 Sep Jefferson

Mostly cloudy and mild with Lows in the upper 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Poplar Tree Bay Temperature Statistics

September Temperature

Watertown, Watertown International Airport (17.4 miles)

  • Lowest 12 September, 2026

    42.7 °F

  • Average September

    65.3 °F

  • Highest 2 September, 2026

    83.6 °F

Climate (2021–2026)

Watertown, Watertown International Airport (17.4 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.6 °F
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