McMillan Weather Forecast

    • 39
    • 60

    Becoming Sunny

    • 41
    • 66

    Chance Thunderstorms

    • 25
    • 47

    Chance Rain Showers

    • 24
    • 43

    Mostly Cloudy

    • 27
    • 40

    Chance Rain/Snow

    • 34
    • 45

    Rain Likely

Today 29 Mar Marathon

Not as cool. Mostly cloudy in the morning then becoming mostly sunny. Highs in the upper 50s. South wind 5 to 10 Mph.

Tonight 29 Mar Marathon

Mostly clear. Lows in the upper 30s. South wind 5 to 10 Mph in the evening becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McMillan Temperature Statistics

March Temperature

Marshfield, Marshfield Municipal Airport (6.8 miles)

  • Lowest 17 March, 2026

    -2.3 °F

  • Average March

    34.2 °F

  • Highest 21 March, 2026

    66.7 °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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