Portland Weather Forecast

    • 52
    • 70

    Rain Showers Likely

    • 50
    • 63

    Rain Showers

    • 53
    • 75

    Chance Thunderstorms

    • 56
    • 82

    Partly Sunny

    • 60
    • 86

    Partly Sunny

    • 58
    • 85

    Slight Chance Thunderstorms

Today 22 May Ionia

Partly sunny. Highs around 70. East Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 22 May Ionia

Rain Showers likely after midnight. Lows in the lower 50s. East Winds 15 to 20 Mph with Gusts to around 35 Mph. Chance of rain 70 percent.

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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

    55 °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

    50 °F

  • Average High 2021–2026

    59 °F
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