Grass Lake Weather Forecast

    • 56
    • 78

    Chance Thunderstorms

    • 53
    • 76

    Partly Cloudy

    • 54
    • 76

    Mostly Sunny

    • 58
    • 76

    Rain Showers Likely

    • 56
    • 77

    Mostly Sunny

    • 60
    • 78

    Partly Sunny

    • 61
    • 79

    Chance Rain Showers

Today 13 Aug Southwestern St. Lawrence

Partly sunny. Patchy fog this morning. Isolated Showers and Thunderstorms this Morning, then scattered Showers and Thunderstorms this afternoon. Highs in the upper 70s. Light and variable Winds, becoming northwest around 10 Mph this afternoon. Chance of rain 50 percent.

Tonight 13 Aug Southwestern St. Lawrence

Mostly clear. A slight chance of Showers and Thunderstorms until midnight. Lows in the mid 50s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

August Temperature

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

  • Lowest 5 August, 2026

    60.1 °F

  • Average August

    73.3 °F

  • Highest 5 August, 2026

    86.7 °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

    55.9 °F
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