Steamboat Lake Weather Forecast

    • 51
    • 86

    Becoming Sunny

    • 46
    • 80

    Mostly Sunny

    • 52
    • 81

    Partly Sunny

    • 46
    • 84

    Partly Sunny

    • 40
    • 71

    Partly Sunny

    • 42
    • 73

    Partly Sunny

    • 40
    • 73

    Mostly Sunny

Today 21 Sep Central Siskiyou County

Partly cloudy. Highs in the mid 70s to mid 80s. North Winds 5 to 10 Mph.

Tonight 21 Sep Central Siskiyou County

Mostly cloudy in the evening then clearing. Lows in the lower to mid 50s. North Winds 5 to 10 Mph.

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Steamboat Lake Temperature Statistics

September Temperature

Montague Siskiyou County Airport (5 miles)

  • Lowest 4 September, 2026

    35.7 °F

  • Average September

    60.3 °F

  • Highest 10 September, 2026

    94.6 °F

Climate (2021–2026)

Montague Siskiyou County Airport (5 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    53.9 °F

  • Average High 2021–2026

    69 °F
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