Femme Osage Weather Forecast

    • 61
    • 70

    Increasing Clouds

    • 59
    • 75

    Mostly Cloudy

    • 60
    • 76

    Mostly Sunny

    • 66
    • 80

    Rain Showers Likely

    • 66
    • 76

    Rain Showers Likely

    • 62
    • 77

    Chance Rain Showers

Today 26 Sep St. Charles

Mostly cloudy. Near steady temperature around 70. East Winds around 5 Mph.

Tonight 26 Sep St. Charles

Mostly cloudy. Lows around 60. East Winds around 5 Mph in the Evening, becoming light and variable.

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Femme Osage Temperature Statistics

September Temperature

Washington Regional Airport (4.3 miles)

  • Lowest 24 September, 2026

    55.4 °F

  • Average September

    78.6 °F

  • Highest 5 September, 2026

    102.2 °F

Climate (2021–2026)

Washington Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    69.7 °F
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