Grass Lake Weather Forecast

    • 49
    • 72

    Becoming Sunny

    • 56
    • 76

    Partly Sunny

    • 60
    • 75

    Mostly Cloudy

    • 62
    • 77

    Rain Showers Likely

    • 51
    • 71

    Chance Rain Showers

    • 50
    • 68

    Mostly Sunny

Today 6 Sep Southwestern St. Lawrence

Partly sunny. Highs in the lower 70s. Northeast Winds around 10 Mph.

Tonight 6 Sep Southwestern St. Lawrence

Clear. Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

September Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (19.9 miles)

  • Lowest 4 September, 2026

    60.6 °F

  • Average September

    70.6 °F

  • Highest 2 September, 2026

    82.2 °F

Climate (2021–2026)

Fort Drum / Wheeler-Sack U. S. Army Airfield (19.9 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    55.9 °F
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