Osceola Weather Forecast

    • 56
    • 67

    Mostly Cloudy

    • 57
    • 70

    Mostly Cloudy

    • 57
    • 73

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 32
    • 69

    Mostly Cloudy

    • 19
    • 39

    Partly Sunny

Today 23 Dec St. Clair

Partly sunny. Near steady temperature in the mid 60s. West Winds around 5 Mph.

Tonight 23 Dec St. Clair

Mostly cloudy with patchy drizzle. Patchy fog. Lows in the mid 50s. East Winds around 5 Mph.

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Osceola Temperature Statistics

December Temperature

Clinton, MO (21.1 miles)

  • Lowest 14 December, 2025

    6.8 °F

  • Average December

    34.6 °F

  • Highest 18 December, 2025

    60.8 °F

Climate (2020–Present)

Clinton, MO (21.1 miles)

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  • Average Low 2020–2025

    46.5 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    68 °F
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