Winthrop Weather Forecast

    • 18
    • 32

    Increasing Clouds

    • 13
    • 30

    Snow/Sleet

    • 10
    • 23

    Chance Snow

    • 14
    • 31

    Partly Sunny

    • 7
    • 28

    Mostly Cloudy

    • 5
    • 19

    Mostly Cloudy

Today 19 Feb Northern St. Lawrence

Mostly sunny. Highs in the lower 30s. Northeast Winds around 10 Mph.

Tonight 19 Feb Northern St. Lawrence

Partly cloudy until Midnight, then becoming mostly cloudy. Lows around 17. Light and variable Winds, becoming northeast around 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

February Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 9 February, 2026

    -12.4 °F

  • Average February

    13.7 °F

  • Highest 17 February, 2026

    37 °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

    46.3 °F

  • Average High 2021–2026

    55.9 °F
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