Union Weather Forecast

    • 11
    • 26

    Partly Sunny

    • 26
    • 33

    Chance Snow

    • 6
    • 33

    Chance Snow

Today 14 Jan Hardin

Sunny, windy and much cooler with Highs in the mid 20s. North Winds 25 to 30 Mph with Gusts up to 40 Mph, becoming northwest 15 to 25 Mph this afternoon.

Tonight 14 Jan Hardin

Mostly clear. Lows around 11. Northwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

January Temperature

Marshalltown, Marshalltown Municipal Airport (11.8 miles)

  • Lowest 1 January, 2026

    12 °F

  • Average January

    29.2 °F

  • Highest 7 January, 2026

    51.1 °F

Climate (2021–Present)

Marshalltown, Marshalltown Municipal Airport (11.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    61 °F
Get WillyWeather+ to remove ads