Grass Lake Weather Forecast

    • 60
    • 69

    Slight Chance Rain Showers

    • 53
    • 75

    Mostly Cloudy

    • 55
    • 72

    Rain Showers Likely

    • 52
    • 72

    Chance Rain Showers

    • 51
    • 69

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

Today 15 Sep Southwestern St. Lawrence

Partly sunny this Morning, then becoming mostly cloudy. Highs in the upper 60s. South Winds around 10 Mph.

Tonight 15 Sep Southwestern St. Lawrence

Partly cloudy until Midnight, then becoming mostly cloudy. A 20 percent chance of Showers. Lows around 60. South Winds around 10 Mph.

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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

    66.8 °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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