Siskiyou Mountain Park Weather Forecast

    • 37
    • 47

    Mostly Cloudy

    • 38
    • 55

    Mostly Sunny

    • 41
    • 55

    Mostly Sunny

    • 39
    • 58

    Mostly Sunny

    • 39
    • 60

    Sunny

    • 39
    • 61

    Sunny

    • 39
    • 60

    Sunny

Today 10 Jan Jackson County

Mostly cloudy. Highs in the mid 40s to lower 50s. South Winds around 5 Mph.

Tonight 10 Jan Jackson County

Mostly cloudy this evening then becoming partly cloudy. Areas of dense fog after midnight. Lows in the lower to mid 30s. East Winds around 5 Mph.

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Siskiyou Mountain Park Temperature Statistics

January Temperature

Montague Siskiyou County Airport (28.6 miles)

  • Lowest 8 January, 2026

    27 °F

  • Average January

    40.6 °F

  • Highest 2 January, 2026

    54 °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

    54.2 °F

  • Average High 2021–2026

    69 °F
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