Portland Weather Forecast

    • 62
    • 84

    Slight Chance Thunderstorms

    • 59
    • 82

    Slight Chance Rain Showers

    • 56
    • 81

    Partly Sunny

    • 63
    • 80

    Rain Showers Likely

    • 61
    • 82

    Chance Thunderstorms

    • 56
    • 80

    Partly Sunny

Today 12 Aug Ionia

Partly sunny. Areas of fog in the morning. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Light Winds becoming west 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 12 Aug Ionia

Partly cloudy. Lows in the lower 60s. West Winds 5 to 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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Portland Temperature Statistics

August Temperature

Ionia County Airport (9.3 miles)

  • Lowest 9 August, 2026

    55.4 °F

  • Average August

    71.7 °F

  • Highest 4 August, 2026

    86 °F

Climate (2021–2026)

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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