Grass Lake Weather Forecast

    • 53
    • 75

    Partly Sunny

    • 43
    • 68

    Partly Sunny

    • 48
    • 65

    Rain Showers Likely

    • 45
    • 64

    Partly Sunny

    • 45
    • 63

    Mostly Cloudy

    • 46
    • 66

    Chance Rain Showers

Today 17 Sep Southwestern St. Lawrence

Patchy dense fog this morning. Partly sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 17 Sep Southwestern St. Lawrence

Partly cloudy until Midnight, then clearing. Patchy dense fog after midnight. Lows in the lower 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 11 September, 2026

    48.2 °F

  • Average September

    66.6 °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

    47.8 °F

  • Average High 2021–2026

    55.9 °F
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