Grass Lake Weather Forecast

    • 60
    • 72

    Mostly Cloudy

    • 59
    • 73

    Rain Showers Likely

    • 44
    • 70

    Rain Showers Likely

    • 39
    • 64

    Partly Sunny

    • 43
    • 65

    Chance Rain Showers

    • 35
    • 60

    Partly Sunny

Today 30 Sep Southwestern St. Lawrence

Patchy dense fog in the morning. Mostly cloudy. Much warmer with Highs in the lower 70s. Light and variable Winds.

Tonight 30 Sep Southwestern St. Lawrence

Mostly cloudy. Lows around 60. 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 22 September, 2026

    38.3 °F

  • Average September

    62.1 °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

    47.7 °F

  • Average High 2021–2026

    55.9 °F
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