Grass Lake Weather Forecast

    • 45
    • 64

    Chance Rain Showers

    • 43
    • 57

    Rain Showers

    • 41
    • 59

    Mostly Cloudy

    • 40
    • 61

    Partly Sunny

    • 43
    • 66

    Mostly Cloudy

    • 44
    • 64

    Mostly Cloudy

Today 19 Sep Southwestern St. Lawrence

Mostly sunny. Highs in the lower 60s. Light and variable Winds.

Tonight 19 Sep Southwestern St. Lawrence

Partly cloudy until Midnight, then becoming mostly cloudy. Lows in the lower 40s. 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

    66.2 °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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