Thousand Island Park Weather Forecast

    • 46
    • 63

    Becoming Sunny

    • 51
    • 71

    Chance Rain Showers

    • 50
    • 70

    Partly Sunny

    • 60
    • 78

    Slight Chance Thunderstorms

    • 56
    • 78

    Rain Showers Likely

    • 45
    • 70

    Chance Rain Showers

    • 44
    • 60

    Partly Sunny

Today 15 May Jefferson

Partly sunny. Highs Ranging from the mid 50s on the tug hill to the lower 60s across the lower Elevations. Light west Winds.

Tonight 15 May Jefferson

Mostly cloudy Early, then clearing. Lows in the mid 40s. Southwest Winds 10 Mph or less.

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  • Temperature Real-Time

Thousand Island Park Temperature Statistics

May Temperature

Watertown, Watertown International Airport (19.9 miles)

  • Lowest 1 May, 2026

    29.6 °F

  • Average May

    47.4 °F

  • Highest 4 May, 2026

    70.6 °F

Climate (2021–Present)

Watertown, Watertown International Airport (19.9 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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