Heppner Weather Forecast

    • 56
    • 83

    Sunny

    • 60
    • 85

    Sunny

    • 63
    • 91

    Sunny

    • 69
    • 93

    Partly Sunny

    • 68
    • 93

    Partly Sunny

    • 68
    • 95

    Mostly Sunny

Today 20 Aug Foothills of the Southern Blue Mountains of Oregon

Sunny. Highs in the lower to mid 80s. West wind 5 to 15 Mph.

Tonight 20 Aug Foothills of the Southern Blue Mountains of Oregon

Mostly clear. Lows in the mid to upper 50s. West wind 5 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Heppner Temperature Statistics

August Temperature

Hermiston, Hermiston Municipal Airport (35.4 miles)

  • Lowest 8 August, 2025

    48.7 °F

  • Average August

    76.6 °F

  • Highest 11 August, 2025

    102.7 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (35.4 miles)

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

  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    67.5 °F
Get WillyWeather+ to remove ads