John Day Weather Forecast

    • 46
    • 88

    Mostly Sunny

    • 47
    • 81

    Partly Sunny

    • 40
    • 66

    Chance Rain Showers

    • 41
    • 58

    Rain Showers Likely

    • 42
    • 64

    Chance Rain Showers

    • 47
    • 77

    Partly Sunny

Today 18 Jun John Day Basin

Sunny. Highs in the lower to mid 80s. Light Wind, becoming northwest 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 18 Jun John Day Basin

Mostly clear. Lows in the mid to upper 40s. Northwest wind 5 to 15 Mph. Gusts up to 25 Mph in the evening.

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John Day Temperature Statistics

June Temperature

Grant County Regional Airport (0.6 miles)

  • Lowest 3 June, 2025

    38.3 °F

  • Average June

    65.6 °F

  • Highest 9 June, 2025

    93.9 °F

Climate (2020–Present)

Grant County Regional Airport (0.6 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    62.3 °F
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