Siskiyou Mountain Park Weather Forecast

    • 46
    • 58

    Mostly Cloudy

    • 45
    • 61

    Mostly Cloudy

    • 44
    • 61

    Mostly Cloudy

    • 39
    • 56

    Slight Chance Rain

    • 40
    • 57

    Partly Sunny

    • 43
    • 63

    Mostly Sunny

Today 29 Jan Jackson County

Mostly cloudy. Highs in the lower to mid 50s. Southeast Winds around 5 Mph.

Tonight 29 Jan Jackson County

Mostly cloudy. A 20 percent chance of rain Showers after midnight. Lows in the mid 30s to lower 40s. Southeast Winds around 5 Mph.

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Siskiyou Mountain Park Temperature Statistics

January Temperature

Montague Siskiyou County Airport (28.6 miles)

  • Lowest 25 January, 2026

    15.1 °F

  • Average January

    36.7 °F

  • Highest 2 January, 2026

    55.7 °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

    54.2 °F

  • Average High 2021–2026

    69 °F
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