Winthrop Weather Forecast

    • 34
    • 55

    Chance Rain

    • 35
    • 46

    Rain

    • 28
    • 47

    Chance Snow

    • 32
    • 38

    Rain

    • 32
    • 46

    Rain Likely

    • 40
    • 50

    Rain Likely

Today 30 Mar Northern St. Lawrence

Partly sunny. Highs in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 30 Mar Northern St. Lawrence

Mostly cloudy. A chance of rain or snow after midnight. Lows in the lower 30s. Northwest Winds around 10 Mph, becoming northeast after midnight. Chance of precipitation 30 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

March Temperature

Massena, Massena International-Richards Field (9.9 miles)

  • Lowest 2 March, 2026

    -15.4 °F

  • Average March

    30.3 °F

  • Highest 16 March, 2026

    68.6 °F

Climate (2021–Present)

Massena, Massena International-Richards Field (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
Get WillyWeather+ to remove ads