Femme Osage Weather Forecast

    • 71
    • 93

    Thunderstorms

    • 66
    • 88

    Mostly Sunny

    • 69
    • 89

    Chance Rain Showers

    • 68
    • 86

    Rain Showers Likely

    • 67
    • 83

    Chance Rain Showers

    • 67
    • 86

    Slight Chance Thunderstorms

Today 28 Jul St. Charles

Mostly sunny. Humid with Highs in the lower 90s. Northwest Winds 5 to 10 Mph, becoming north in the afternoon. Heat index Values up to 104.

Tonight 28 Jul St. Charles

Mostly cloudy in the Evening, then clearing. Lows in the upper 60s. Northeast Winds 5 to 10 Mph. Heat index Values up to 100 early in the evening.

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Femme Osage Temperature Statistics

July Temperature

Washington Regional Airport (4.3 miles)

  • Lowest 13 July, 2026

    64.4 °F

  • Average July

    79.1 °F

  • Highest 2 July, 2026

    95 °F

Climate (2021–2026)

Washington Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    69.7 °F
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