Steamboat Lake Weather Forecast

    • 59
    • 97

    Hot

    • 61
    • 97

    Hot

    • 56
    • 92

    Partly Sunny

    • 52
    • 88

    Sunny

    • 54
    • 90

    Mostly Sunny

    • 56
    • 91

    Mostly Sunny

Today 19 Aug Central Siskiyou County

Sunny. Highs 90 to 100. Light Winds becoming north around 5 Mph in the late morning and early Afternoon, then shifting to the northwest late this afternoon.

Tonight 19 Aug Central Siskiyou County

Clear. Lows in the lower to mid 60s. Northwest Winds 5 to 10 Mph shifting to the south after midnight.

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Steamboat Lake Temperature Statistics

August Temperature

Montague Siskiyou County Airport (5 miles)

  • Lowest 16 August, 2026

    47.6 °F

  • Average August

    75.5 °F

  • Highest 7 August, 2026

    104.6 °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

    69.1 °F
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