Siskiyou Mountain Park Weather Forecast

    • 49
    • 67

    Mostly Cloudy

    • 47
    • 70

    Chance Rain

    • 35
    • 55

    Slight Chance Rain

    • 39
    • 61

    Partly Sunny

    • 46
    • 71

    Partly Sunny

    • 46
    • 73

    Partly Sunny

Today 23 Mar Jackson County

Patchy frost early this morning. Mostly cloudy until early Afternoon, then partly cloudy with a 10 percent chance of rain late this afternoon. Highs around 70 in the Valleys and in the lower to mid 60s at higher Elevations. Light Winds becoming west around 5 Mph in the late morning and afternoon.

Tonight 23 Mar Jackson County

Mostly cloudy with a 20 percent chance of rain. Lows in the mid 40s to lower 50s. West Winds around 5 Mph shifting to the southeast after midnight.

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Siskiyou Mountain Park Temperature Statistics

March Temperature

Montague Siskiyou County Airport (28.6 miles)

  • Lowest 11 March, 2026

    24.7 °F

  • Average March

    48.7 °F

  • Highest 18 March, 2026

    81.6 °F

Climate (2021–Present)

Montague Siskiyou County Airport (28.6 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    69.2 °F
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