Unionville Weather Forecast

    • 43
    • 59

    Increasing Clouds

    • 19
    • 47

    Chance Rain Showers

    • 22
    • 32

    Partly Sunny

    • 23
    • 45

    Mostly Cloudy

    • 15
    • 32

    Partly Sunny

    • 14
    • 29

    Mostly Sunny

Today 13 Jan Massac

Sunny. Highs in the upper 50s. Southwest Winds 5 to 10 Mph.

Tonight 13 Jan Massac

Mostly clear. Near steady temperature in the upper 30s. South Winds around 5 Mph.

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Unionville Temperature Statistics

January Temperature

Metropolis Municipal Airport (11.8 miles)

  • Lowest 4 January, 2026

    22.6 °F

  • Average January

    44.5 °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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