Columbia County Fairgrounds Weather Forecast

    • 63
    • 73

    Rain

    • 58
    • 77

    Slight Chance Rain Showers

    • 57
    • 78

    Mostly Cloudy

    • 56
    • 78

    Partly Sunny

    • 57
    • 81

    Mostly Sunny

    • 57
    • 83

    Sunny

    • 57
    • 85

    Sunny

Today 15 Aug Lower Columbia River

A chance of Showers this Morning, then Showers likely this afternoon. Highs in the lower 70s. South wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 15 Aug Lower Columbia River

Rain. Lows in the lower 60s. South wind 5 to 10 Mph, becoming southwest after midnight. Chance of rain near 100 percent. Rainfall Amounts a quarter to a half of an inch.

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Columbia County Fairgrounds Temperature Statistics

August Temperature

Scappoose Industrial Airpark (5.6 miles)

  • Lowest 8 August, 2025

    48.7 °F

  • Average August

    71.1 °F

  • Highest 12 August, 2025

    99 °F

Climate (2020–Present)

Scappoose Industrial Airpark (5.6 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    63.3 °F
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