Dewey Lake Weather Forecast

    • 59
    • 83

    Mostly Cloudy

    • 56
    • 82

    Partly Sunny

    • 50
    • 76

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

Today 26 May Cass

Partly cloudy. Highs in the lower 80s. South Winds around 5 Mph.

Tonight 26 May Cass

Partly cloudy. Lows in the upper 50s. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Dewey Lake Temperature Statistics

May Temperature

Southwest Michigan Regional Airport (12.4 miles)

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    54.2 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

Southwest Michigan Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    60.8 °F
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