Mercer Lake Weather Forecast

    • 55
    • 69

    Increasing Clouds

    • 52
    • 68

    Slight Chance Rain Showers

    • 53
    • 71

    Partly Sunny

    • 54
    • 70

    Rain Showers Likely

    • 54
    • 68

    Chance Rain Showers

    • 54
    • 70

    Slight Chance Rain Showers

Today 10 Sep Central Oregon Coast Range Lowlands

Mostly sunny. A slight chance of Showers this afternoon. Highs in the mid 70s. Winds light. Chance of rain 20 percent.

Tonight 10 Sep Central Oregon Coast Range Lowlands

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 50s. Winds light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercer Lake Temperature Statistics

September Temperature

Newport, Newport Municipal Airport (36 miles)

  • Lowest 1 September, 2025

    48.2 °F

  • Average September

    58 °F

  • Highest 8 September, 2025

    69.8 °F

Climate (2020–Present)

Newport, Newport Municipal Airport (36 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    50.1 °F

  • Average High 2020–2025

    56.4 °F
Get WillyWeather+ to remove ads