Winthrop Weather Forecast

    • 3
    • 21

    Decreasing Clouds

    • 18
    • 25

    Chance Snow

    • 11
    • 30

    Mostly Cloudy

    • 20
    • 30

    Slight Chance Snow Showers

    • 24
    • 36

    Mostly Cloudy

    • 26
    • 39

    Chance Snow Showers

Today 12 Feb Northern St. Lawrence

Partly sunny. Highs in the lower 20s. West Winds around 10 Mph.

Tonight 12 Feb Northern St. Lawrence

Mostly clear until Midnight, then becoming partly cloudy. Lows around 2 above. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

February Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 8 February, 2026

    -11.9 °F

  • Average February

    7.9 °F

  • Highest 3 February, 2026

    27.6 °F

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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