John Day Weather Forecast

    • 15
    • 37

    Decreasing Clouds

    • 17
    • 35

    Decreasing Clouds

    • 12
    • 36

    Mostly Sunny

    • 17
    • 36

    Partly Sunny

    • 21
    • 40

    Partly Sunny

    • 22
    • 43

    Partly Sunny

    • 25
    • 45

    Partly Sunny

Today 17 Jan John Day Basin

Partly sunny in the morning then clearing. Highs in the mid 30s to lower 40s. Light wind.

Tonight 17 Jan John Day Basin

Mostly clear. Lows 15 to 23. Light wind.

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John Day Temperature Statistics

January Temperature

Grant County Regional Airport (0.6 miles)

  • Lowest 13 January, 2025

    23.9 °F

  • Average January

    34.3 °F

  • Highest 15 January, 2025

    53.1 °F

Climate (2020–Present)

Grant County Regional Airport (0.6 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    62.3 °F
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