Grass Lake Weather Forecast

    • 57
    • 74

    Rain Showers

    • 58
    • 79

    Mostly Sunny

    • 65
    • 83

    Chance Rain Showers

    • 66
    • 83

    Chance Thunderstorms

    • 65
    • 81

    Chance Rain Showers

    • 65
    • 82

    Chance Rain Showers

Today 3 Aug Southwestern St. Lawrence

A slight chance of Thunderstorms late this morning. Showers likely. Some Thunderstorms may produce heavy rainfall late this morning. Highs in the mid 70s. Southwest Winds around 10 Mph, becoming west with Gusts up to 25 Mph this afternoon. Chance of rain 70 percent.

Tonight 3 Aug Southwestern St. Lawrence

Partly cloudy with a chance of Showers until Midnight, then clear after midnight. Lows in the mid 50s. West Winds around 10 Mph until Midnight, becoming light and variable. Chance of rain 50 percent.

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Grass Lake Temperature Statistics

August Temperature

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

  • Lowest 1 August, 2026

    63.1 °F

  • Average August

    74.3 °F

  • Highest 1 August, 2026

    85.3 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56 °F
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