Thurso Bay Weather Forecast

    • 54
    • 73

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 59
    • 75

    Partly Sunny

    • 58
    • 76

    Partly Sunny

    • 48
    • 68

    Mostly Sunny

    • 49
    • 64

    Partly Sunny

Today 15 Sep Jefferson

Some patchy fog Early, otherwise sunny. Highs Ranging from the lower 70s on the tug hill to the upper 70s across the lower Elevations. Light Winds.

Tonight 15 Sep Jefferson

Mainly clear with some patchy fog developing overnight. Lows in the lower 50s. Light east Winds.

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Thurso Bay Temperature Statistics

September Temperature

Watertown, Watertown International Airport (21.1 miles)

  • Lowest 9 September, 2025

    39.9 °F

  • Average September

    61.1 °F

  • Highest 4 September, 2025

    80.1 °F

Climate (2020–Present)

Watertown, Watertown International Airport (21.1 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    57.7 °F
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