Washington State Park Weather Forecast

    • 61
    • 93

    Sunny

    • 63
    • 94

    Partly Sunny

    • 62
    • 89

    Chance Thunderstorms

    • 63
    • 87

    Chance Rain Showers

    • 63
    • 85

    Chance Thunderstorms

    • 63
    • 85

    Chance Thunderstorms

Today 17 Sep Washington

Sunny. Highs in the lower 90s. East Winds around 5 Mph, becoming northeast around 5 Mph this afternoon.

Tonight 17 Sep Washington

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.

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Washington State Park Temperature Statistics

September Temperature

Farmington Airport (26.1 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    74.9 °F

  • Highest 14 September, 2025

    96.8 °F

Climate (2020–Present)

Farmington Airport (26.1 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    66.6 °F
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