Grass River Weather Forecast

    • 55
    • 67

    Increasing Clouds

    • 58
    • 68

    Rain Showers Likely

    • 36
    • 64

    Rain Showers

    • 34
    • 59

    Partly Sunny

    • 36
    • 62

    Chance Rain Showers

    • 28
    • 51

    Chance Rain Showers

Today 30 Sep Southeastern St. Lawrence

Partly sunny. Highs in the upper 60s. Light and variable Winds.

Tonight 30 Sep Southeastern St. Lawrence

Mostly cloudy until Midnight, then becoming partly cloudy. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass River Temperature Statistics

September Temperature

Saranac Lake, Adirondack Regional Airport (27.3 miles)

  • Lowest 24 September, 2026

    26.7 °F

  • Average September

    54.3 °F

  • Highest 3 September, 2026

    77.6 °F

Climate (2021–2026)

Saranac Lake, Adirondack Regional Airport (27.3 miles)

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  • Average Low 2021–2026

    30.6 °F

  • Average 2021–2026

    42.5 °F

  • Average High 2021–2026

    53.5 °F
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