Macy Weather Forecast

    • 29
    • 47

    Increasing Clouds

    • 32
    • 50

    Mostly Cloudy

    • 36
    • 46

    Mostly Cloudy

    • 37
    • 53

    Mostly Cloudy

    • 16
    • 52

    Partly Sunny

    • 10
    • 27

    Mostly Sunny

Today 23 Dec Thurston

Mostly sunny. Highs in the upper 40s. Northeast Winds 5 to 10 Mph.

Tonight 23 Dec Thurston

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 20s. Southeast Winds 5 to 10 Mph.

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Macy Temperature Statistics

December Temperature

Sioux City, Sioux Gateway Airport (19.9 miles)

  • Lowest 14 December, 2025

    -11.9 °F

  • Average December

    23 °F

  • Highest 9 December, 2025

    48 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (19.9 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    62.7 °F
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