Washington Weather Forecast

    • 44
    • 70

    Becoming Sunny

    • 46
    • 73

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

    • 52
    • 80

    Mostly Sunny

    • 53
    • 82

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

Today 7 Sep Washington

Mostly sunny. Highs around 70. West Winds 5 to 10 Mph.

Tonight 7 Sep Washington

Clear. Patchy dense fog after midnight. Lows in the mid 40s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Washington Temperature Statistics

September Temperature

Washington - Washington County Airport (3.1 miles)

  • Lowest 1 September, 2025

    44.1 °F

  • Average September

    62.8 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Washington - Washington County Airport (3.1 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    62.5 °F
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