Hat Rock State Park Weather Forecast

    • 41
    • 53

    Rain Likely

    • 38
    • 59

    Rain

    • 37
    • 57

    Chance Rain

    • 39
    • 61

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

    • 47
    • 72

    Partly Sunny

Today 31 Mar Lower Columbia Basin of Oregon

Mostly cloudy. A 20 percent chance of rain or snow in the morning. Highs in the lower 50s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 31 Mar Lower Columbia Basin of Oregon

Mostly cloudy. A 50 percent chance of rain overnight. Lows around 40. Light wind.

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Hat Rock State Park Temperature Statistics

March Temperature

Hermiston, Hermiston Municipal Airport (7.5 miles)

  • Lowest 27 March, 2026

    21.7 °F

  • Average March

    50 °F

  • Highest 19 March, 2026

    75.7 °F

Climate (2021–Present)

Hermiston, Hermiston Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    67.7 °F
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