Big Cliff Reservoir Weather Forecast

    • 55
    • 66

    Mostly Sunny

    • 56
    • 77

    Sunny

    • 54
    • 71

    Mostly Sunny

    • 57
    • 69

    Mostly Sunny

    • 57
    • 73

    Mostly Sunny

    • 55
    • 70

    Slight Chance Rain

Today 15 Sep Cascade Foothills of Marion and Linn Counties

Sunny. Highs in the lower 70s. Winds light.

Tonight 15 Sep Cascade Foothills of Marion and Linn Counties

Mostly clear. Lows in the mid 50s. East wind 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Cliff Reservoir Temperature Statistics

September Temperature

Salem - McNary Field (37.3 miles)

  • Lowest 13 September, 2025

    51.1 °F

  • Average September

    67.8 °F

  • Highest 4 September, 2025

    91 °F

Climate (2020–Present)

Salem - McNary Field (37.3 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    65.6 °F
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