Richmond Weather Forecast

    • 45
    • 65

    Increasing Clouds

    • 48
    • 68

    Partly Sunny

    • 49
    • 68

    Mostly Sunny

    • 50
    • 73

    Partly Sunny

    • 48
    • 70

    Partly Sunny

    • 49
    • 72

    Mostly Sunny

Today 28 Sep John Day Basin

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

Tonight 28 Sep John Day Basin

Clear in the Evening, becoming partly cloudy. Lows in the lower to mid 40s. Light wind.

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Richmond Temperature Statistics

September Temperature

Prineville Airport (54.7 miles)

  • Lowest 14 September, 2026

    32 °F

  • Average September

    56.5 °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

    62.9 °F
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