Washington Weather Forecast

    • 66
    • 82

    Rain Showers

    • 60
    • 82

    Chance Rain Showers

    • 55
    • 74

    Partly Sunny

    • 63
    • 81

    Partly Sunny

    • 66
    • 85

    Partly Sunny

    • 61
    • 82

    Rain Showers Likely

Today 12 Sep Washington

Partly sunny in the Morning, then mostly cloudy with Showers with a chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Humid with Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 12 Sep Washington

Showers with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall. Warm with Lows in the mid 60s. Southeast Winds around 5 Mph, becoming southwest after midnight. Chance of rain near 100 percent.

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Washington Temperature Statistics

September Temperature

Washington - Washington County Airport (3.1 miles)

  • Lowest 8 September, 2026

    55.9 °F

  • Average September

    74.8 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Washington - Washington County Airport (3.1 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    62.6 °F
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