Renshaw Bay Weather Forecast

    • 45
    • 58

    Gradual Clearing

    • 44
    • 59

    Partly Sunny

    • 50
    • 66

    Chance Rain Showers

    • 47
    • 61

    Rain Showers Likely

    • 50
    • 66

    Chance Rain Showers

    • 49
    • 66

    Slight Chance Rain Showers

    • 50
    • 68

    Mostly Cloudy

Today 20 May Jefferson

Mostly sunny. Highs Ranging from the upper 50s along the lake Ontario shore to the lower 60s inland. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming west.

Tonight 20 May Jefferson

Mostly cloudy and breezy. Lows Ranging from the lower 40s across the tug hill to the mid 40s along the lake Ontario shore. West Winds 10 to 15 Mph, becoming northeast.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Renshaw Bay Temperature Statistics

May Temperature

Watertown, Watertown International Airport (23 miles)

  • Lowest 1 May, 2026

    29.6 °F

  • Average May

    51 °F

  • Highest 18 May, 2026

    87.1 °F

Climate (2021–Present)

Watertown, Watertown International Airport (23 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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