Hat Rock State Park Weather Forecast

    • 65
    • 94

    Patchy Smoke

    • 64
    • 94

    Mostly Cloudy

    • 57
    • 88

    Mostly Sunny

    • 56
    • 86

    Mostly Sunny

    • 53
    • 81

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 56
    • 86

    Mostly Sunny

Today 25 Aug Lower Columbia Basin of Oregon

Sunny. Patchy smoke. Highs in the lower to mid 90s. Northwest wind 5 to 10 Mph.

Tonight 25 Aug Lower Columbia Basin of Oregon

Mostly clear. Patchy smoke through the night. Lows in the lower to mid 60s. West wind 5 to 15 Mph.

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Hat Rock State Park Temperature Statistics

August Temperature

Hermiston, Hermiston Municipal Airport (7.5 miles)

  • Lowest 4 August, 2026

    45.6 °F

  • Average August

    75 °F

  • Highest 7 August, 2026

    100.7 °F

Climate (2021–2026)

Hermiston, Hermiston Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    67.6 °F
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