Mercer Lake Weather Forecast

    • 42
    • 53

    Rain Showers

    • 44
    • 53

    Rain

    • 43
    • 53

    Rain Showers

    • 40
    • 52

    Rain Likely

    • 40
    • 52

    Rain Likely

    • 40
    • 53

    Rain

Today 20 Dec Central Oregon Coast Range Lowlands

Partly sunny with rain Showers likely this Morning, then mostly cloudy with a chance of rain Showers this afternoon. Highs around 50. South wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 20 Dec Central Oregon Coast Range Lowlands

Mostly cloudy. A chance of rain Showers in the Evening, then rain Showers after midnight. Lows around 40. Winds light. Chance of rain 90 percent. Rainfall Amounts a tenth to a quarter of an inch.

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Mercer Lake Temperature Statistics

December Temperature

Newport, Newport Municipal Airport (36 miles)

  • Lowest 1 December, 2025

    35.6 °F

  • Average December

    50.4 °F

  • Highest 13 December, 2025

    60.8 °F

Climate (2020–Present)

Newport, Newport Municipal Airport (36 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    56.5 °F
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