Winthrop Weather Forecast

    • 5
    • 25

    Snow Showers

    • 5
    • 13

    Slight Chance Snow Showers

    • 20
    • 26

    Snow Showers Likely

    • 6
    • 29

    Chance Snow Showers

    • -14
    • 12

    Mostly Cloudy

    • -16
    • -3

    Cold

Today 19 Jan Northern St. Lawrence

A chance of light snow this Morning, then snow Showers this afternoon. Snow accumulation around an inch. Highs in the mid 20s. South Winds 10 to 15 Mph. Chance of snow near 100 percent.

Tonight 19 Jan Northern St. Lawrence

Partly cloudy. Snow Showers, mainly until midnight. Total snow accumulation around an inch. Lows around 4 above. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 90 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

    20.5 °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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