Heppner Weather Forecast

    • 36
    • 48

    Rain

    • 38
    • 54

    Rain

    • 33
    • 47

    Rain/Snow Likely

    • 31
    • 45

    Chance Rain

    • 36
    • 46

    Rain Likely

    • 34
    • 48

    Chance Rain/Snow

Today 17 Dec Foothills of the Southern Blue Mountains of Oregon

Mostly sunny. A 50 percent chance of rain or snow in the morning. Highs in the 40s. Very windy. West wind 20 to 35 Mph with Gusts to around 50 Mph.

Tonight 17 Dec Foothills of the Southern Blue Mountains of Oregon

Mostly cloudy. A 50 percent chance of rain or snow overnight. Snow level 2500 feet. Lows in the lower to mid 30s. Southwest wind 5 to 15 Mph. Gusts up to 25 Mph in the evening.

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Heppner Temperature Statistics

December Temperature

Hermiston, Hermiston Municipal Airport (35.4 miles)

  • Lowest 1 December, 2025

    25 °F

  • Average December

    45.7 °F

  • Highest 10 December, 2025

    70 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (35.4 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.7 °F
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