Steamboat Lake Weather Forecast

    • 41
    • 75

    Becoming Sunny

    • 41
    • 77

    Mostly Sunny

    • 43
    • 80

    Sunny

    • 47
    • 83

    Sunny

    • 50
    • 87

    Mostly Sunny

    • 47
    • 84

    Mostly Sunny

    • 49
    • 85

    Mostly Sunny

Today 27 Sep Central Siskiyou County

Sunny. Highs in the lower 80s to lower 90s.

Tonight 27 Sep Central Siskiyou County

Partly cloudy with isolated Thunderstorms early this Evening, then mostly clear late this evening and overnight. Lows in the lower to mid 40s. Northwest Winds 10 to 15 Mph shifting to the north around 5 Mph after midnight.

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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

    61.1 °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

    39.2 °F

  • Average 2021–2026

    53.9 °F

  • Average High 2021–2026

    69 °F
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