Grass River Weather Forecast

    • 47
    • 69

    Increasing Clouds

    • 62
    • 82

    Partly Sunny

    • 59
    • 81

    Rain Showers Likely

    • 39
    • 71

    Chance Rain Showers

    • 38
    • 56

    Partly Sunny

    • 42
    • 62

    Partly Sunny

Today 17 May Southeastern St. Lawrence

Partly sunny. Highs around 70. West Winds around 10 Mph.

Tonight 17 May Southeastern St. Lawrence

Partly cloudy. Lows in the upper 40s. Light and variable Winds.

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Grass River Temperature Statistics

May Temperature

Saranac Lake, Adirondack Regional Airport (27.3 miles)

  • Lowest 9 May, 2026

    20.6 °F

  • Average May

    42.8 °F

  • Highest 5 May, 2026

    71.7 °F

Climate (2021–Present)

Saranac Lake, Adirondack Regional Airport (27.3 miles)

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  • Average Low 2021–2026

    30.9 °F

  • Average 2021–2026

    42.6 °F

  • Average High 2021–2026

    53.5 °F
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