Chaumont Bay Weather Forecast

    • 43
    • 66

    Becoming Sunny

    • 46
    • 64

    Mostly Sunny

    • 61
    • 72

    Mostly Cloudy

    • 62
    • 72

    Chance Rain Showers

    • 59
    • 70

    Chance Rain Showers

    • 57
    • 71

    Slight Chance Rain Showers

Today 19 Sep Jefferson

Sunny. Highs Ranging from the lower 60s on the tug hill to the upper 60s across the lower Elevations. North Winds 5 to 10 Mph.

Tonight 19 Sep Jefferson

Mostly cloudy. Lows in the lower 50s. North Winds 5 to 10 Mph, becoming light.

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Chaumont Bay Temperature Statistics

September Temperature

Watertown, Watertown International Airport (9.9 miles)

  • Lowest 9 September, 2025

    39.9 °F

  • Average September

    61.3 °F

  • Highest 4 September, 2025

    80.1 °F

Climate (2020–Present)

Watertown, Watertown International Airport (9.9 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    57.7 °F
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