Dewey Lake Weather Forecast

    • 43
    • 68

    Mostly Sunny

    • 42
    • 69

    Mostly Sunny

    • 42
    • 68

    Mostly Sunny

    • 48
    • 68

    Partly Sunny

    • 48
    • 70

    Mostly Cloudy

    • 43
    • 64

    Mostly Cloudy

Today 21 Oct Cass

Patchy fog this morning. Mostly sunny. Highs in the upper 60s. Southeast Winds around 5 Mph this Morning, becoming light and variable.

Tonight 21 Oct Cass

Clear. Lows in the lower 40s. Light and variable Winds.

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Dewey Lake Temperature Statistics

October Temperature

Southwest Michigan Regional Airport (12.4 miles)

  • Lowest 17 October, 2026

    33.1 °F

  • Average October

    58.8 °F

  • Highest 12 October, 2026

    86.6 °F

Climate (2021–2026)

Southwest Michigan Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    60.7 °F
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