Siskiyou Mountain Park Weather Forecast

    • 55
    • 84

    Mostly Sunny

    • 52
    • 84

    Mostly Sunny

    • 47
    • 79

    Mostly Sunny

    • 52
    • 83

    Sunny

    • 50
    • 84

    Mostly Sunny

    • 49
    • 78

    Partly Sunny

Today 27 Aug Jackson County

Mostly cloudy early this morning then clearing. Highs in the mid 80s to lower 90s in the Valleys and in the lower 70s to lower 80s at higher Elevations. Northwest Winds around 5 Mph shifting to the west in the late morning and afternoon.

Tonight 27 Aug Jackson County

Mostly clear. Lows in the lower to mid 50s. Northwest Winds 5 to 10 Mph.

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Siskiyou Mountain Park Temperature Statistics

August Temperature

Montague Siskiyou County Airport (28.6 miles)

  • Lowest 16 August, 2026

    47.6 °F

  • Average August

    74.8 °F

  • Highest 7 August, 2026

    104.6 °F

Climate (2021–2026)

Montague Siskiyou County Airport (28.6 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    69.1 °F
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