Steamboat Lake Weather Forecast

    • 42
    • 65

    Chance Rain Showers

    • 42
    • 73

    Mostly Sunny

    • 53
    • 81

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

    • 56
    • 88

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

Today 6 Sep Central Siskiyou County

Mostly cloudy with a chance of Showers and slight chance of Thunderstorms late this Morning, then partly cloudy with a slight chance of Thunderstorms early this afternoon. Partly cloudy late this afternoon. Highs in the lower to mid 60s. North Winds 5 to 10 Mph. Chance of precipitation 30 percent.

Tonight 6 Sep Central Siskiyou County

Clear. Lows in the lower to mid 40s. 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

    36 °F

  • Average September

    55.8 °F

  • Highest 1 September, 2026

    77.6 °F

Climate (2021–2026)

Montague Siskiyou County Airport (5 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    69 °F
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