Winthrop Weather Forecast

    • -9
    • 16

    Mostly Sunny

    • 9
    • 21

    Partly Sunny

    • 24
    • 40

    Chance Snow

    • 30
    • 41

    Chance Rain

    • 27
    • 40

    Chance Rain

    • 36
    • 44

    Chance Rain

Today 1 Mar Northern St. Lawrence

Partly sunny. Highs around 16. Northwest Winds around 10 Mph.

Tonight 1 Mar Northern St. Lawrence

Mostly clear. Much Colder with Lows around 11 below. Light and variable Winds.

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Winthrop Temperature Statistics

March Temperature

Massena, Massena International-Richards Field (9.9 miles)

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  • Average March

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Climate (2021–Present)

Massena, Massena International-Richards Field (9.9 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
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