Steamboat Lake Weather Forecast

    • 36
    • 72

    Sunny

    • 42
    • 77

    Mostly Sunny

    • 44
    • 81

    Mostly Sunny

    • 48
    • 85

    Mostly Sunny

    • 49
    • 86

    Mostly Sunny

    • 48
    • 86

    Mostly Sunny

    • 46
    • 84

    Mostly Sunny

Today 18 May Central Siskiyou County

Sunny. Highs in the mid 60s to mid 70s. North Winds 5 to 10 Mph.

Tonight 18 May Central Siskiyou County

Clear. Lows in the mid 30s to lower 40s. North Winds 10 to 15 Mph with Gusts to around 30 Mph decreasing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Steamboat Lake Temperature Statistics

May Temperature

Montague Siskiyou County Airport (5 miles)

  • Lowest 14 May, 2026

    34.6 °F

  • Average May

    61.1 °F

  • Highest 12 May, 2026

    89.7 °F

Climate (2021–Present)

Montague Siskiyou County Airport (5 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    69.2 °F
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