Flynn Bay Weather Forecast

    • 26
    • 38

    Chance Rain/Snow

    • 15
    • 30

    Chance Snow Showers

    • 23
    • 31

    Mostly Cloudy

    • 22
    • 36

    Chance Rain/Snow

    • 21
    • 28

    Chance Rain Showers

    • 31
    • 39

    Rain Showers Likely

Today 20 Dec Jefferson

Mostly sunny in the Morning, then becoming mostly cloudy. Windy, Colder with Highs Ranging from the mid 30s inland to the upper 30s along the lake Ontario shore. Light Winds, becoming south 20 to 30 Mph.

Tonight 20 Dec Jefferson

Mostly Cloudy, then becoming partly cloudy. Windy with Lows 10 to 15. West Winds 20 to 30 Mph with Gusts up to 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flynn Bay Temperature Statistics

December Temperature

Watertown, Watertown International Airport (18.6 miles)

  • Lowest 5 December, 2025

    -6 °F

  • Average December

    23.4 °F

  • Highest 17 December, 2025

    41 °F

Climate (2020–Present)

Watertown, Watertown International Airport (18.6 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    57.6 °F
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