Grass Lake Weather Forecast

    • 58
    • 83

    Decreasing Clouds

    • 45
    • 76

    Slight Chance Rain Showers

    • 55
    • 71

    Chance Thunderstorms

    • 60
    • 82

    Rain Showers Likely

    • 60
    • 77

    Rain Showers Likely

    • 53
    • 77

    Slight Chance Thunderstorms

Today 12 Sep Barry

Mostly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph becoming west 10 to 15 Mph in the afternoon.

Tonight 12 Sep Barry

Partly cloudy. Lows in the upper 50s. West Winds 5 to 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

September Temperature

W K Kellogg Airport (9.3 miles)

  • Lowest 6 September, 2026

    54.6 °F

  • Average September

    73 °F

  • Highest 2 September, 2026

    93.7 °F

Climate (2021–2026)

W K Kellogg Airport (9.3 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.8 °F
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