Siskiyou Mountain Park Weather Forecast

    • 44
    • 52

    Mostly Cloudy

    • 40
    • 57

    Mostly Cloudy

    • 42
    • 55

    Chance Rain

    • 40
    • 54

    Slight Chance Rain

    • 44
    • 56

    Partly Sunny

    • 44
    • 58

    Mostly Cloudy

Today 25 Jan Jackson County

Partly cloudy in the morning then becoming mostly cloudy. Highs in the mid 40s to lower 50s. East Winds around 5 Mph shifting to the southeast in the afternoon.

Tonight 25 Jan Jackson County

Mostly cloudy. Lows in the lower to mid 30s. Southeast Winds around 5 Mph.

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Siskiyou Mountain Park Temperature Statistics

January Temperature

Montague Siskiyou County Airport (28.6 miles)

  • Lowest 20 January, 2026

    18 °F

  • Average January

    36.2 °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

    39.7 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    69 °F
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