Mercer Lake Weather Forecast

    • 47
    • 62

    Rain Likely

    • 50
    • 60

    Rain

    • 52
    • 61

    Rain

    • 45
    • 58

    Rain

    • 44
    • 53

    Rain

    • 46
    • 56

    Rain

Today 13 Dec Central Oregon Coast Range Lowlands

Patchy fog this morning. Mostly sunny. Highs around 60. Winds light.

Tonight 13 Dec Central Oregon Coast Range Lowlands

Partly cloudy in the Evening, then mostly cloudy with rain likely after midnight. Lows in the mid 40s. Winds light. Chance of rain 70 percent. Rainfall Amounts less than a tenth 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

    49.6 °F
  • Highest 7 December, 2025

    55.4 °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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