Aiken County Park Weather Forecast

    • 40
    • 70

    Mostly Sunny

    • 41
    • 72

    Mostly Sunny

    • 42
    • 75

    Mostly Sunny

    • 45
    • 79

    Mostly Sunny

    • 46
    • 83

    Mostly Sunny

    • 45
    • 78

    Partly Sunny

    • 47
    • 83

    Mostly Sunny

Today 27 Sep Siskiyou Mountains and Southern Oregon Cascades

Partly cloudy until early Afternoon, then isolated Thunderstorms late this afternoon. Highs in the lower 60s to lower 70s. Northeast Winds around 5 Mph shifting to the west this afternoon.

Tonight 27 Sep Siskiyou Mountains and Southern Oregon Cascades

Partly cloudy with isolated Thunderstorms early this Evening, then mostly clear late this evening and overnight. Lows in the lower to mid 40s. North Winds 5 to 10 Mph.

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Aiken County Park Temperature Statistics

September Temperature

Rogue Valley International Airport (32.9 miles)

  • Lowest 14 September, 2026

    42.7 °F

  • Average September

    64.7 °F

  • Highest 9 September, 2026

    96.7 °F

Climate (2021–2026)

Rogue Valley International Airport (32.9 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    70.1 °F
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