Richmond Weather Forecast

    • 44
    • 65

    Mostly Sunny

    • 46
    • 65

    Mostly Sunny

    • 45
    • 64

    Mostly Sunny

    • 49
    • 69

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

Today 14 Sep John Day Basin

Sunny. Highs in the upper 60s to lower 70s. Light wind.

Tonight 14 Sep John Day Basin

Mostly clear. Lows in the 40s. Light wind.

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Richmond Temperature Statistics

September Temperature

Prineville Airport (54.7 miles)

  • Lowest 12 September, 2026

    33.8 °F

  • Average September

    56.4 °F

  • Highest 9 September, 2026

    86 °F

Climate (2021–2026)

Prineville Airport (54.7 miles)

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  • Average Low 2021–2026

    34.6 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    63 °F
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