Grass Lake Weather Forecast

    • 54
    • 73

    Rain Showers

    • 47
    • 63

    Chance Rain Showers

    • 37
    • 59

    Chance Rain Showers

    • 37
    • 56

    Partly Sunny

    • 35
    • 54

    Partly Sunny

    • 38
    • 56

    Mostly Sunny

Today 27 Apr St. Joseph

Showers with a chance of Thunderstorms. Highs in the lower 70s. Southeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 80 percent.

Tonight 27 Apr St. Joseph

A chance of Thunderstorms. Showers. Lows in the lower 50s. South Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

April Temperature

Sturgis, Kirsch Municipal Airport (6.2 miles)

  • Lowest 7 April, 2026

    21.2 °F

  • Average April

    51.4 °F

  • Highest 13 April, 2026

    80.6 °F

Climate (2021–Present)

Sturgis, Kirsch Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.7 °F
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