Winthrop Weather Forecast

    • 30
    • 57

    Becoming Sunny

    • 32
    • 56

    Sunny

    • 31
    • 55

    Partly Sunny

    • 29
    • 51

    Mostly Sunny

    • 34
    • 53

    Mostly Sunny

    • 44
    • 59

    Partly Sunny

Today 20 Oct Northern St. Lawrence

Sunny. Highs in the upper 50s. Light and variable Winds, becoming northeast around 10 Mph this afternoon.

Tonight 20 Oct Northern St. Lawrence

Clear. Lows in the lower 30s. Light and variable Winds.

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Winthrop Temperature Statistics

October Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 10 October, 2026

    29.6 °F

  • Average October

    50.3 °F

  • Highest 4 October, 2026

    70.6 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (9.9 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.1 °F

  • Average High 2021–2026

    55.9 °F
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