Lake Siskiyou Weather Forecast

    • 59
    • 95

    Mostly Sunny

    • 60
    • 92

    Partly Sunny

    • 59
    • 92

    Mostly Sunny

    • 54
    • 82

    Chance Rain

    • 53
    • 82

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

Today 16 Jun South Central Siskiyou County

Sunny. Highs 90 to 100. North Winds 5 to 10 Mph shifting to the west this afternoon.

Tonight 16 Jun South Central Siskiyou County

Clear. Lows in the mid 50s to lower 60s. Northwest Winds 5 to 10 Mph.

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Lake Siskiyou Temperature Statistics

June Temperature

Mount Shasta (2.5 miles)

  • Lowest 7 June, 2026

    39.7 °F

  • Average June

    63.3 °F

  • Highest 14 June, 2026

    89.1 °F

Climate (2021–Present)

Mount Shasta (2.5 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    66 °F
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