Mercer Lake County Park Weather Forecast

    • 49
    • 68

    Becoming Sunny

    • 50
    • 67

    Areas Fog

    • 54
    • 78

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 52
    • 74

    Partly Sunny

    • 52
    • 70

    Mostly Cloudy

Today 14 Sep Central Oregon Coast Range Lowlands

Partly sunny in the Morning, then clearing. Areas of fog in the morning. Highs in the lower 70s. Light and variable Winds, becoming light in the afternoon.

Tonight 14 Sep Central Oregon Coast Range Lowlands

Partly cloudy. Patchy fog after midnight. Lows in the upper 40s. Winds light in the Evening, becoming light and variable.

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Mercer Lake County Park Temperature Statistics

September Temperature

Newport, Newport Municipal Airport (36 miles)

  • Lowest 11 September, 2026

    44.6 °F

  • Average September

    56.6 °F

  • Highest 9 September, 2026

    69.8 °F

Climate (2021–2026)

Newport, Newport Municipal Airport (36 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    56.7 °F
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