Sunnyside County Park Weather Forecast

    • 30
    • 43

    Decreasing Clouds

    • 32
    • 45

    Increasing Clouds

    • 34
    • 50

    Partly Sunny

    • 35
    • 52

    Partly Sunny

    • 38
    • 53

    Mostly Cloudy

    • 40
    • 53

    Rain

    • 35
    • 49

    Rain Likely

Today 27 Dec Cascade Foothills of Marion and Linn Counties

Mostly cloudy. A chance of rain and snow Showers, mainly in the morning. Snow level 2000 feet. Snow accumulation up to 1 inch. Highs in the lower 40s. West wind 5 to 10 Mph. Chance of precipitation 50 percent. Rainfall Amounts around a tenth of an inch.

Tonight 27 Dec Cascade Foothills of Marion and Linn Counties

Mostly cloudy. Widespread frost after midnight. Lows in the upper 20s. Winds light.

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Sunnyside County Park Temperature Statistics

December Temperature

Corvallis, Corvallis Municipal Airport (33.6 miles)

  • Lowest 1 December, 2025

    30 °F

  • Average December

    47.5 °F

  • Highest 10 December, 2025

    61 °F

Climate (2020–Present)

Corvallis, Corvallis Municipal Airport (33.6 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    64 °F
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