Grass Lake Weather Forecast

    • 56
    • 77

    Slight Chance Rain Showers

    • 53
    • 73

    Chance Rain Showers

    • 46
    • 68

    Partly Sunny

    • 49
    • 65

    Rain Showers Likely

    • 49
    • 68

    Chance Rain Showers

    • 50
    • 67

    Chance Rain Showers

Today 16 Sep Southwestern St. Lawrence

Mostly cloudy this Morning, then becoming partly sunny. Warmer with Highs in the mid 70s. Southwest Winds around 10 Mph this Morning, becoming light and variable.

Tonight 16 Sep Southwestern St. Lawrence

Partly cloudy until Midnight, then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 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

    67.2 °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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