Chaumont Bay Weather Forecast

    • 36
    • 65

    Rain Showers

    • 30
    • 42

    Rain Showers

    • 29
    • 38

    Partly Sunny

    • 37
    • 45

    Chance Rain Showers

    • 36
    • 49

    Partly Sunny

    • 41
    • 52

    Partly Sunny

Today 18 Apr Jefferson

Mostly sunny in the Morning, then partly sunny with a chance of Showers in the afternoon. Breezy, warmer with Highs Ranging from the upper 60s along the lake Ontario shore to the lower 70s inland. Southeast Winds 10 to 20 Mph, becoming south with Gusts up to 40 Mph. Chance of rain 40 percent.

Tonight 18 Apr Jefferson

Rain Showers. Locally heavy rainfall possible in the evening. Breezy, cooler with Lows Ranging from the lower 30s on the tug hill to the mid 30s across the lower Elevations. South Winds 10 to 20 Mph with Gusts up to 40 Mph, becoming west 5 to 10 Mph. Chance of rain near 100 percent.

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Chaumont Bay Temperature Statistics

April Temperature

Watertown, Watertown International Airport (9.9 miles)

  • Lowest 8 April, 2026

    12.7 °F

  • Average April

    45 °F

  • Highest 3 April, 2026

    73.7 °F

Climate (2021–Present)

Watertown, Watertown International Airport (9.9 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.5 °F
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