Grass Lake Weather Forecast

    • 61
    • 84

    Chance Thunderstorms

    • 51
    • 70

    Chance Rain Showers

    • 53
    • 72

    Mostly Sunny

    • 55
    • 76

    Rain Showers Likely

    • 60
    • 75

    Rain Showers

    • 56
    • 74

    Slight Chance Thunderstorms

Today 13 Jun St. Joseph

Sunny. Highs in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 13 Jun St. Joseph

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Lows in the lower 60s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

June Temperature

Sturgis, Kirsch Municipal Airport (6.2 miles)

  • Lowest 3 June, 2026

    50 °F

  • Average June

    72.5 °F

  • Highest 10 June, 2026

    87.8 °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

    50.9 °F

  • Average High 2021–2026

    59.7 °F
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