Clyde Holliday State Park Weather Forecast

    • 58
    • 91

    Increasing Clouds

    • 53
    • 88

    Chance Rain Showers

    • 52
    • 73

    Rain Showers Likely

    • 46
    • 67

    Rain Showers Likely

    • 47
    • 69

    Chance Rain Showers

    • 47
    • 74

    Chance Rain Showers

    • 49
    • 76

    Slight Chance Rain Showers

Today 31 Aug John Day Basin

Sunny. Highs in the mid 80s to lower 90s. Northeast wind 5 to 10 Mph.

Tonight 31 Aug John Day Basin

Mostly cloudy. Lows in the 50s. North wind 5 to 10 Mph with Gusts to around 20 Mph in the Evening, becoming light.

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Clyde Holliday State Park Temperature Statistics

August Temperature

Grant County Regional Airport (6.2 miles)

  • Lowest 3 August, 2026

    44.2 °F

  • Average August

    72.8 °F

  • Highest 7 August, 2026

    99.5 °F

Climate (2021–2026)

Grant County Regional Airport (6.2 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    62.1 °F
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