Unionville Weather Forecast

    • 28
    • 46

    Mostly Cloudy

    • 10
    • 40

    Mostly Cloudy

    • 9
    • 20

    Mostly Sunny

    • 22
    • 34

    Mostly Sunny

    • 36
    • 45

    Mostly Cloudy

    • 48
    • 54

    Chance Rain Showers

Today 12 Dec Massac

Partly sunny. Highs in the mid 40s. North Winds 5 to 10 Mph.

Tonight 12 Dec Massac

Mostly cloudy. Lows in the upper 20s. North Winds around 5 Mph in the Evening, becoming light and variable.

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Unionville Temperature Statistics

December Temperature

Metropolis Municipal Airport (11.8 miles)

  • Lowest 9 December, 2025

    22.1 °F

  • Average December

    34 °F

  • Highest 10 December, 2025

    50.9 °F

Climate (2021–Present)

Metropolis Municipal Airport (11.8 miles)

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  • Average Low 2021–2025

    49.1 °F

  • Average 2021–2025

    59.3 °F

  • Average High 2021–2025

    69.8 °F
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