Winthrop Weather Forecast

    • 27
    • 32

    Snow

    • 33
    • 38

    Rain Showers Likely

    • 12
    • 39

    Snow Showers Likely

    • 3
    • 14

    Slight Chance Snow Showers

    • 9
    • 19

    Partly Sunny

    • 16
    • 28

    Chance Snow Showers

Today 12 Jan Northern St. Lawrence

Mostly cloudy. A chance of snow Showers through late Morning, then snow Showers likely this afternoon. Little or no snow accumulation. Highs in the lower 30s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 70 percent.

Tonight 12 Jan Northern St. Lawrence

Cloudy. Snow Showers Likely, mainly until midnight. Little or no snow accumulation. Lows in the upper 20s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 70 percent.

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Winthrop Temperature Statistics

January Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 2 January, 2026

    -11.9 °F

  • Average January

    17.9 °F

  • Highest 9 January, 2026

    48.9 °F

Climate (2021–Present)

Massena, Massena International-Richards Field (9.9 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    46.3 °F

  • Average High 2021–2026

    56 °F
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