Heppner Weather Forecast

    • 64
    • 93

    Chance Rain Showers

    • 57
    • 88

    Mostly Sunny

    • 58
    • 87

    Sunny

    • 59
    • 89

    Mostly Sunny

    • 64
    • 91

    Partly Sunny

    • 65
    • 91

    Mostly Cloudy

Today 15 Jul Foothills of the Southern Blue Mountains of Oregon

Sunny. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the lower to mid 90s. Northwest wind 5 to 15 Mph.

Tonight 15 Jul Foothills of the Southern Blue Mountains of Oregon

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the lower to mid 60s. Northwest wind 5 to 15 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Heppner Temperature Statistics

July Temperature

Hermiston, Hermiston Municipal Airport (35.4 miles)

  • Lowest 5 July, 2026

    51.7 °F

  • Average July

    75 °F

  • Highest 7 July, 2026

    100.7 °F

Climate (2021–2026)

Hermiston, Hermiston Municipal Airport (35.4 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    67.6 °F
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