Grass Lake Weather Forecast

    • 54
    • 80

    Increasing Clouds

    • 53
    • 79

    Partly Sunny

    • 53
    • 81

    Slight Chance Rain Showers

    • 40
    • 68

    Mostly Sunny

    • 47
    • 68

    Partly Sunny

    • 56
    • 77

    Chance Rain Showers

Today 16 Sep Southwestern St. Lawrence

Sunny. Highs in the upper 70s. Light and variable Winds.

Tonight 16 Sep Southwestern St. Lawrence

Clear 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 Lake Temperature Statistics

September Temperature

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

  • Lowest 8 September, 2025

    45 °F

  • Average September

    61.3 °F

  • Highest 4 September, 2025

    81.9 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    48.1 °F

  • Average High 2020–2025

    56.2 °F
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