Hat Rock State Park Weather Forecast

    • 36
    • 51

    Patchy Fog

    • 36
    • 52

    Gradual Clearing

    • 37
    • 54

    Mostly Cloudy

    • 36
    • 52

    Mostly Cloudy

    • 34
    • 51

    Partly Sunny

    • 35
    • 49

    Partly Sunny

    • 36
    • 51

    Partly Sunny

Today 31 Jan Lower Columbia Basin of Oregon

Mostly cloudy. Highs around 50. Northeast wind 5 to 10 Mph.

Tonight 31 Jan Lower Columbia Basin of Oregon

Mostly cloudy. Patchy fog through the night. Lows in the mid to upper 30s. Light wind.

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Hat Rock State Park Temperature Statistics

January Temperature

Hermiston, Hermiston Municipal Airport (7.5 miles)

  • Lowest 25 January, 2026

    12.7 °F

  • Average January

    35.9 °F

  • Highest 12 January, 2026

    57.7 °F

Climate (2021–Present)

Hermiston, Hermiston Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    67.6 °F
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