Chaumont Bay Weather Forecast

    • 57
    • 74

    Chance Rain Showers

    • 52
    • 67

    Mostly Sunny

    • 62
    • 71

    Chance Rain Showers

    • 63
    • 74

    Rain Showers Likely

    • 59
    • 74

    Rain Showers Likely

    • 55
    • 69

    Partly Sunny

Today 13 Sep Jefferson

Mostly cloudy with a chance of Showers this Morning, then partly sunny this afternoon. Highs Ranging from the lower 70s on the tug hill to the mid 70s across the lower Elevations. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 13 Sep Jefferson

Mostly cloudy with a chance of Showers in the Evening, then partly cloudy overnight. Less humid with Lows Ranging from the upper 40s on the tug hill to the lower 50s across the lower Elevations. West Winds 5 to 10 Mph, becoming northwest. Chance of rain 40 percent.

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Chaumont Bay Temperature Statistics

September Temperature

Watertown, Watertown International Airport (9.9 miles)

  • Lowest 7 September, 2026

    47.6 °F

  • Average September

    67.3 °F

  • Highest 2 September, 2026

    83.6 °F

Climate (2021–2026)

Watertown, Watertown International Airport (9.9 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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