El Cajon Bay Weather Forecast

    • 56
    • 67

    Partly Sunny

    • 59
    • 73

    Mostly Sunny

    • 55
    • 69

    Partly Sunny

    • 53
    • 62

    Mostly Sunny

    • 55
    • 61

    Slight Chance Rain Showers

    • 57
    • 65

    Chance Rain Showers

Today 16 Sep Alpena

Partly sunny. Patchy fog early. Highs in the upper 70s. Southeast Winds up to 10 Mph.

Tonight 16 Sep Alpena

Partly cloudy. Areas of fog. Lows around 50. Light Winds.

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  • Temperature Real-Time

El Cajon Bay Temperature Statistics

September Temperature

Alpena, Alpena County Regional Airport (11.8 miles)

  • Lowest 8 September, 2025

    39 °F

  • Average September

    57.9 °F

  • Highest 13 September, 2025

    75.9 °F

Climate (2020–Present)

Alpena, Alpena County Regional Airport (11.8 miles)

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  • Average Low 2020–2025

    37.2 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    56.5 °F
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