Femme Osage Weather Forecast

    • 17
    • 75

    Chance Rain

    • 17
    • 29

    Becoming Sunny

    • 27
    • 37

    Mostly Sunny

    • 25
    • 43

    Partly Sunny

    • 23
    • 40

    Partly Sunny

    • 28
    • 44

    Mostly Cloudy

    • 24
    • 44

    Partly Sunny

Today 28 Dec St. Charles

Mostly cloudy with a slight chance of rain and Thunderstorms. Breezy and not as cool with Highs in the lower 70s. Temperature falling into the mid 50s late. West Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 20 percent.

Tonight 28 Dec St. Charles

Mostly cloudy this Evening, then becoming partly cloudy. Windy and much cooler with Lows around 19. West Winds 20 to 30 Mph with Gusts up to 45 Mph. Wind chill Values as low as 1 above after midnight.

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Femme Osage Temperature Statistics

December Temperature

Washington Regional Airport (4.3 miles)

  • Lowest 14 December, 2025

    8.6 °F

  • Average December

    38.3 °F

  • Highest 25 December, 2025

    71.6 °F

Climate (2020–Present)

Washington Regional Airport (4.3 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    69 °F
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