Winthrop Weather Forecast

    • 56
    • 76

    Chance Rain Showers

    • 67
    • 81

    Rain Showers

    • 72
    • 87

    Chance Rain Showers

    • 74
    • 93

    Mostly Sunny

    • 66
    • 90

    Chance Thunderstorms

    • 59
    • 80

    Chance Thunderstorms

Today 20 Jun Northern St. Lawrence

Mostly cloudy with a chance of Showers this Morning, then mostly sunny this afternoon. Highs in the mid 70s. West Winds 15 to 20 Mph. Gusts up to 40 Mph this morning. Chance of rain 50 percent.

Tonight 20 Jun Northern St. Lawrence

Mostly clear. Lows in the mid 50s. West Winds around 10 Mph until Midnight, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

June Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 3 June, 2025

    42.7 °F

  • Average June

    63.9 °F

  • Highest 4 June, 2025

    87.7 °F

Climate (2020–Present)

Massena, Massena International-Richards Field (9.9 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    56.2 °F
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