Union Weather Forecast

    • 16
    • 33

    Mostly Sunny

    • 22
    • 30

    Snow

    • 13
    • 29

    Snow

    • 0
    • 19

    Mostly Cloudy

    • 5
    • 16

    Mostly Cloudy

    • 12
    • 22

    Mostly Cloudy

    • 4
    • 28

    Mostly Cloudy

Today 27 Nov Hardin

Partly sunny. Near steady temperature in the upper 20s. Northwest Winds 15 to 20 Mph.

Tonight 27 Nov Hardin

Partly cloudy. Lows 15 to 20. Northwest Winds 10 to 15 Mph.

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Union Temperature Statistics

November Temperature

Marshalltown, Marshalltown Municipal Airport (11.8 miles)

  • Lowest 10 November, 2025

    17.1 °F

  • Average November

    42.9 °F

  • Highest 14 November, 2025

    71.1 °F

Climate (2020–Present)

Marshalltown, Marshalltown Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    39.7 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    61.1 °F
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