Grass Lake Weather Forecast

    • 34
    • 50

    Chance Rain Showers

    • 35
    • 48

    Mostly Sunny

    • 40
    • 52

    Rain Showers

    • 40
    • 50

    Chance Rain Showers

    • 42
    • 57

    Partly Sunny

    • 44
    • 59

    Mostly Cloudy

Today 10 May Alpena

Mostly sunny with slight chance of rain Showers Early, then mostly cloudy with chance of rain Showers in the afternoon. Highs in the lower 50s. Northwest Winds 10 to 15 Mph with Gusts to around 25 Mph. Chance of Showers 50 percent.

Tonight 10 May Alpena

Mostly clear. Areas of frost Early, then widespread frost after midnight. Lows in the lower 30s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

May Temperature

Alpena, Alpena County Regional Airport (11.2 miles)

  • Lowest 3 May, 2026

    27.6 °F

  • Average May

    43.7 °F

  • Highest 4 May, 2026

    77.6 °F

Climate (2021–Present)

Alpena, Alpena County Regional Airport (11.2 miles)

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  • Average Low 2021–2026

    36.9 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    56.3 °F
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