St Lawrence State Park Weather Forecast

    • 50
    • 77

    Slight Chance Rain Showers

    • 42
    • 66

    Mostly Sunny

    • 60
    • 71

    Chance Rain Showers

    • 56
    • 75

    Mostly Cloudy

    • 54
    • 71

    Chance Rain Showers

    • 51
    • 70

    Chance Rain Showers

    • 51
    • 66

    Chance Rain Showers

Today 13 Sep Northern St. Lawrence

Mostly cloudy this Morning, then becoming partly sunny. A chance of Thunderstorms. A chance of Showers this Morning, then Showers likely this afternoon. Highs in the upper 70s. Southwest Winds around 10 Mph. Chance of rain 70 percent.

Tonight 13 Sep Northern St. Lawrence

Partly cloudy. Scattered Showers with a chance of Thunderstorms until Midnight, then isolated Showers after midnight. Lows in the lower 50s. West Winds around 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Lawrence State Park Temperature Statistics

September Temperature

Massena, Massena International-Richards Field (4.3 miles)

  • Lowest 11 September, 2026

    45 °F

  • Average September

    65.5 °F

  • Highest 2 September, 2026

    81.6 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (4.3 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
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