Prairie City Weather Forecast

    • 37
    • 65

    Becoming Sunny

    • 41
    • 75

    Mostly Sunny

    • 45
    • 84

    Mostly Sunny

    • 45
    • 82

    Mostly Sunny

    • 40
    • 73

    Mostly Sunny

    • 36
    • 67

    Partly Sunny

Today 7 Sep Ochoco-John Day Highlands

Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs in the lower to mid 60s.

Tonight 7 Sep Ochoco-John Day Highlands

Mostly clear. Lows in the mid 30s to lower 40s.

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Prairie City Temperature Statistics

September Temperature

Grant County Regional Airport (13 miles)

  • Lowest 4 September, 2026

    37.8 °F

  • Average September

    55.4 °F

  • Highest 1 September, 2026

    83.7 °F

Climate (2021–2026)

Grant County Regional Airport (13 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    62.1 °F
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