Richmond Weather Forecast

    • 52
    • 78

    Partly Sunny

    • 46
    • 70

    Partly Sunny

    • 49
    • 68

    Partly Sunny

    • 48
    • 73

    Chance Rain Showers

    • 41
    • 58

    Slight Chance Rain Showers

    • 41
    • 58

    Mostly Cloudy

Today 21 Sep John Day Basin

Sunny. Highs in the lower to mid 80s. Southeast wind 5 to 10 Mph in the Morning, becoming light.

Tonight 21 Sep John Day Basin

Mostly cloudy. Lows in the lower 50s. Light wind.

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Richmond Temperature Statistics

September Temperature

Prineville Airport (54.7 miles)

  • Lowest 14 September, 2026

    32 °F

  • Average September

    55.8 °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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