Dutch John Bay Weather Forecast

    • 42
    • 50

    Mostly Sunny

    • 42
    • 48

    Partly Sunny

    • 45
    • 50

    Rain Showers

    • 46
    • 54

    Rain Showers

    • 46
    • 53

    Chance Rain Showers

    • 47
    • 55

    Mostly Cloudy

Today 10 May Jefferson

Sunny, cool with Highs Ranging from around 50 on the tug hill to the mid 50s across the lower Elevations. West Winds 10 to 15 Mph, becoming southwest.

Tonight 10 May Jefferson

Mainly clear with Areas of frost developing. Lows Ranging from the mid 30s across the tug hill to the lower 40s along the lake Ontario shore. Southwest Winds 10 to 15 Mph, becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dutch John Bay Temperature Statistics

May Temperature

Watertown, Watertown International Airport (15.5 miles)

  • Lowest 1 May, 2026

    29.6 °F

  • Average May

    47.7 °F

  • Highest 4 May, 2026

    70.6 °F

Climate (2021–Present)

Watertown, Watertown International Airport (15.5 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.6 °F
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