Portland Weather Forecast

    • 43
    • 67

    Becoming Sunny

    • 40
    • 66

    Mostly Sunny

    • 41
    • 64

    Mostly Sunny

    • 48
    • 67

    Partly Sunny

    • 47
    • 70

    Mostly Cloudy

    • 40
    • 63

    Partly Sunny

Today 21 Oct Ionia

Sunny. Patchy fog in the morning. Highs in the upper 60s. Light Winds becoming southwest around 5 Mph in the afternoon.

Tonight 21 Oct Ionia

Mostly clear. Lows in the lower 40s. Light Winds.

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Portland Temperature Statistics

October Temperature

Ionia County Airport (9.3 miles)

  • Lowest 17 October, 2026

    32 °F

  • Average October

    57.2 °F

  • Highest 12 October, 2026

    84.2 °F

Climate (2021–2026)

Ionia County Airport (9.3 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.9 °F
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