Riddle's Roost Airport Weather Forecast

    • 45
    • 76

    Mostly Sunny

    • 46
    • 75

    Sunny

    • 51
    • 77

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

    • 61
    • 89

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

    • 62
    • 89

    Partly Sunny

Today 6 Sep St. Charles

Sunny. Near steady temperature in the mid 70s. West Winds 5 to 10 Mph.

Tonight 6 Sep St. Charles

Mostly clear. Lows in the upper 40s. Northwest Winds 5 to 10 Mph, becoming north after midnight.

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Riddle's Roost Airport Temperature Statistics

September Temperature

Washington Regional Airport (16.8 miles)

  • Lowest 3 September, 2025

    57.2 °F

  • Average September

    69.1 °F

  • Highest 3 September, 2025

    86 °F

Climate (2020–Present)

Washington Regional Airport (16.8 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    68.7 °F
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