Lake Siskiyou Weather Forecast

    • 56
    • 84

    Mostly Sunny

    • 61
    • 95

    Sunny

    • 54
    • 92

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

    • 48
    • 80

    Partly Sunny

    • 49
    • 80

    Slight Chance Rain Showers

Today 29 May South Central Siskiyou County

Mostly cloudy early this morning then clearing. Highs in the mid 70s to mid 80s. North Winds 5 to 10 Mph shifting to the northwest late this afternoon.

Tonight 29 May South Central Siskiyou County

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Siskiyou Temperature Statistics

May Temperature

Mount Shasta (2.5 miles)

  • Lowest 1 May, 2025

    37.7 °F

  • Average May

    57.8 °F

  • Highest 27 May, 2025

    84 °F

Climate (2020–Present)

Mount Shasta (2.5 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    65.6 °F
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