Unionville Weather Forecast

    • 10
    • 24

    Increasing Clouds

    • 13
    • 16

    Wintry Mix

    • 2
    • 18

    Snow Showers

    • 1
    • 16

    Mostly Sunny

    • 11
    • 27

    Partly Sunny

    • 4
    • 27

    Mostly Cloudy

Today 23 Jan Massac

Mostly sunny. Much cooler with Highs in the lower 20s. North Winds around 15 Mph with Gusts up to 30 Mph.

Tonight 23 Jan Massac

Mostly cloudy. A chance of snow after midnight. Cold with Lows around 10 above. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of snow 40 percent. Wind chill Readings as low as 4 below.

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Unionville Temperature Statistics

January Temperature

Metropolis Municipal Airport (11.8 miles)

  • Lowest 12 January, 2026

    21.2 °F

  • Average January

    43.5 °F

  • Highest 8 January, 2026

    68.9 °F

Climate (2021–Present)

Metropolis Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    69.4 °F
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