Dewey Lake Weather Forecast

    • 49
    • 83

    Rain Showers

    • 42
    • 60

    Partly Sunny

    • 46
    • 65

    Partly Sunny

    • 52
    • 68

    Chance Rain Showers

    • 54
    • 72

    Slight Chance Thunderstorms

    • 56
    • 75

    Chance Rain Showers

Today 19 May Cass

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 90 percent.

Tonight 19 May Cass

A chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Cooler. Less humid with Lows around 50. West Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming northwest around 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 50 percent.

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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

    50.2 °F

  • Highest 16 May, 2026

    77 °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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