Muir Weather Forecast

    • 55
    • 84

    Mostly Sunny

    • 57
    • 86

    Slight Chance Rain Showers

    • 52
    • 78

    Partly Sunny

    • 54
    • 80

    Mostly Cloudy

    • 60
    • 83

    Chance Rain Showers

    • 59
    • 79

    Chance Rain Showers

    • 55
    • 78

    Slight Chance Thunderstorms

Today 17 Sep Ionia

Sunny. Highs in the mid 80s. Light Winds.

Tonight 17 Sep Ionia

Mostly clear. Lows in the mid 50s. Southwest Winds around 5 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Muir Temperature Statistics

September Temperature

Ionia County Airport (6.8 miles)

  • Lowest 8 September, 2025

    35.6 °F

  • Average September

    60.6 °F

  • Highest 14 September, 2025

    82.4 °F

Climate (2020–Present)

Ionia County Airport (6.8 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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