Hat Rock State Park Weather Forecast

    • 48
    • 66

    Chance Rain Showers

    • 55
    • 83

    Partly Sunny

    • 55
    • 90

    Rain Showers Likely

    • 47
    • 75

    Chance Rain Showers

    • 46
    • 71

    Mostly Sunny

    • 47
    • 73

    Mostly Sunny

Today 26 May Lower Columbia Basin of Oregon

Mostly cloudy. Highs in the mid 60s. West wind 5 to 10 Mph.

Tonight 26 May Lower Columbia Basin of Oregon

Mostly cloudy with a 20 percent chance of rain Showers. Lows in the upper 40s. Southwest wind 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Hat Rock State Park Temperature Statistics

May Temperature

Hermiston, Hermiston Municipal Airport (7.5 miles)

  • Lowest 1 May, 2026

    37.7 °F

  • Average May

    62.7 °F

  • Highest 4 May, 2026

    88.6 °F

Climate (2021–Present)

Hermiston, Hermiston Municipal Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    67.7 °F
Get WillyWeather+ to remove ads