Siskiyou Mountain Park Weather Forecast

    • 50
    • 70

    Mostly Cloudy

    • 45
    • 63

    Rain Likely

    • 42
    • 54

    Rain

    • 39
    • 55

    Rain

    • 40
    • 63

    Slight Chance Rain

    • 44
    • 70

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

Today 19 Apr Jackson County

Mostly cloudy. Highs in the lower to mid 70s. South Winds 10 to 15 Mph.

Tonight 19 Apr Jackson County

Mostly cloudy. Lows in the mid 40s to lower 50s. South Winds 10 to 15 Mph shifting to the east around 5 Mph well after midnight.

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Siskiyou Mountain Park Temperature Statistics

April Temperature

Montague Siskiyou County Airport (28.6 miles)

  • Lowest 3 April, 2026

    17.7 °F

  • Average April

    48.3 °F

  • Highest 6 April, 2026

    78.7 °F

Climate (2021–Present)

Montague Siskiyou County Airport (28.6 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    69.2 °F
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