Portland Weather Forecast

    • 49
    • 67

    Rain Showers

    • 37
    • 68

    Rain Showers

    • 24
    • 43

    Chance Rain Showers

    • 32
    • 44

    Mostly Cloudy

    • 48
    • 63

    Rain Showers

    • 39
    • 60

    Chance Rain Showers

Today 29 Mar Ionia

A slight chance of rain Showers until Midday, then rain Showers likely in the afternoon. Highs in the upper 60s. Southwest Winds 5 to 15 Mph with Gusts to around 30 Mph. Chance of rain 70 percent.

Tonight 29 Mar Ionia

Rain Showers. Lows in the mid to upper 40s. East Winds 5 to 10 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

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Portland Temperature Statistics

March Temperature

Ionia County Airport (9.3 miles)

  • Lowest 1 March, 2025

    15.8 °F

  • Average March

    39.3 °F

  • Highest 14 March, 2025

    75.2 °F

Climate (2020–Present)

Ionia County Airport (9.3 miles)

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  • Average Low 2020–2025

    40.9 °F

  • Average 2020–2025

    49.9 °F

  • Average High 2020–2025

    58.8 °F
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