Grass Lake Weather Forecast

    • 54
    • 73

    Becoming Sunny

    • 41
    • 72

    Chance Rain Showers

    • 48
    • 65

    Mostly Cloudy

    • 50
    • 63

    Chance Rain Showers

    • 51
    • 65

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

Today 28 Oct St. Joseph

Mostly Cloudy, then becoming partly cloudy this Morning, then becoming sunny. Highs in the lower 70s. South Winds around 5 Mph, becoming southwest around 5 Mph this afternoon.

Tonight 28 Oct St. Joseph

Clear. Lows in the mid 50s. South Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

October Temperature

Sturgis, Kirsch Municipal Airport (6.2 miles)

  • Lowest 17 October, 2026

    33.8 °F

  • Average October

    56.8 °F

  • Highest 12 October, 2026

    82.4 °F

Climate (2021–2026)

Sturgis, Kirsch Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.7 °F
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