Lake Siskiyou Weather Forecast

    • 27
    • 49

    Becoming Sunny

    • 27
    • 48

    Mostly Sunny

    • 25
    • 51

    Sunny

    • 28
    • 49

    Mostly Sunny

    • 29
    • 51

    Mostly Sunny

    • 32
    • 53

    Mostly Sunny

    • 32
    • 55

    Mostly Sunny

Today 17 Jan South Central Siskiyou County

Sunny until early afternoon then becoming mostly cloudy. Patchy fog and freezing fog early this morning. Highs in the lower 40s to lower 50s. Northwest Winds around 5 Mph shifting to the southwest this afternoon.

Tonight 17 Jan South Central Siskiyou County

Mostly cloudy early this evening then clearing. Lows in the lower 20s to lower 30s. Northeast Winds 5 to 10 Mph.

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Lake Siskiyou Temperature Statistics

January Temperature

Mount Shasta (2.5 miles)

  • Lowest 13 January, 2025

    25 °F

  • Average January

    38.5 °F

  • Highest 15 January, 2025

    55.9 °F

Climate (2020–Present)

Mount Shasta (2.5 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    65.5 °F
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