Portland State Game Area Weather Forecast

    • 72
    • 90

    Chance Rain Showers

    • 63
    • 85

    Rain Showers Likely

    • 59
    • 80

    Partly Sunny

    • 63
    • 86

    Partly Sunny

    • 63
    • 85

    Chance Rain Showers

    • 63
    • 84

    Chance Thunderstorms

Today 5 Jul Ionia

Mostly sunny. Highs in the lower 90s. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 5 Jul Ionia

Partly cloudy. A chance of Showers and a slight chance of Thunderstorms overnight. Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts to around 20 Mph. Chance of rain 50 percent.

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Portland State Game Area Temperature Statistics

July Temperature

Ionia County Airport (10.6 miles)

  • Lowest 3 July, 2025

    60.8 °F

  • Average July

    74.7 °F

  • Highest 2 July, 2025

    86 °F

Climate (2020–Present)

Ionia County Airport (10.6 miles)

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  • Average Low 2020–2025

    40.9 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    58.9 °F
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