McMillan Weather Forecast

    • 28
    • 48

    Decreasing Clouds

    • 27
    • 48

    Partly Sunny

    • 37
    • 55

    Partly Sunny

    • 38
    • 61

    Chance Rain Showers

    • 37
    • 57

    Chance Rain Showers

    • 40
    • 61

    Chance Rain Showers

Today 30 Apr Marathon

Widespread frost in the morning. Mostly cloudy with a chance of rain Showers. Highs in the upper 40s. Northwest wind 10 to 15 Mph. Chance of rain 30 percent.

Tonight 30 Apr Marathon

Partly cloudy. Widespread frost. Fog also possible. Lows around 30. Light and variable wind.

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McMillan Temperature Statistics

April Temperature

Marshfield, Marshfield Municipal Airport (6.8 miles)

  • Lowest 7 April, 2026

    17.7 °F

  • Average April

    44.3 °F

  • Highest 13 April, 2026

    78.7 °F

Climate (2021–Present)

Marshfield, Marshfield Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    36.7 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    55.3 °F
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