Grass Lake Weather Forecast

    • 58
    • 77

    Slight Chance Thunderstorms

    • 61
    • 79

    Partly Sunny

    • 55
    • 76

    Rain Showers Likely

    • 53
    • 75

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

    • 58
    • 78

    Chance Rain Showers

Today 17 Aug Southwestern St. Lawrence

Mostly cloudy with a chance of Showers in the Morning, then partly sunny with a slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the mid 70s. Light and variable Winds. Chance of rain 50 percent.

Tonight 17 Aug Southwestern St. Lawrence

Partly cloudy. Lows in the upper 50s. Light and variable Winds.

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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 14 August, 2026

    58.5 °F

  • Average August

    72 °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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