Portland Weather Forecast

    • 50
    • 77

    Increasing Clouds

    • 49
    • 79

    Mostly Sunny

    • 50
    • 77

    Sunny

    • 54
    • 81

    Mostly Sunny

    • 61
    • 85

    Mostly Cloudy

    • 63
    • 85

    Chance Rain Showers

Today 31 May Ionia

Sunny. Highs in the upper 70s. Light Winds.

Tonight 31 May Ionia

Partly cloudy. Lows around 50. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Temperature Statistics

May Temperature

Ionia County Airport (9.3 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    56.8 °F

  • Highest 17 May, 2026

    84.2 °F

Climate (2021–Present)

Ionia County Airport (9.3 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59 °F
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