Winthrop Weather Forecast

    • 35
    • 51

    Rain Showers

    • 35
    • 50

    Partly Sunny

    • 33
    • 50

    Chance Rain Showers

    • 37
    • 49

    Chance Rain Showers

    • 43
    • 57

    Chance Rain Showers

    • 39
    • 54

    Chance Rain Showers

Today 30 Apr Northern St. Lawrence

Mostly cloudy. Rain likely in the Morning, then a slight chance of Showers in the afternoon. Highs in the lower 50s. West Winds around 10 Mph. Chance of rain 70 percent.

Tonight 30 Apr Northern St. Lawrence

Partly cloudy. Lows in the mid 30s. Northwest Winds around 10 Mph until Midnight, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

April Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 8 April, 2026

    15.7 °F

  • Average April

    44.3 °F

  • Highest 18 April, 2026

    80.7 °F

Climate (2021–Present)

Massena, Massena International-Richards Field (9.9 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.8 °F
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